What is the average amount of shampoo per bottle?

08 Apr.,2024

 

View Full Version : How much shampoo per wash?


sapphire-o

I've been wondering about this: how much shampoo (in oz or ml) is normal or typical per wash? I know everyone is different, and a lot of people probably don't measure. I got all nerdy a while ago and weighed my shampoo before and after use. I got about 15g's difference for liquid shampoo, so about 1/2 oz. Also 5g's difference for shampoo bar. By that calculation a 300ml bottle would be 20 uses and 100g shampoo bar would also be 20 uses. That's not too bad. :D

How about you? Say if you have a 10 oz bottle and used it up in two months, just divide by number of washing you do during that time. :) I know the talks about "quarter sized is all you need" stuff. That's not precise and doesn't consider hair thickness and texture.

Diana Prince

I use about between 5 and 15 ml of shampoo per wash. It really depends on the formula and if I wash once or repeat one more time (if my scalp is itchy double shampooing is a must).

missmelaniem

I take about a quarter sized dollop and dilute it down in a plastic bottle. It just helps to distribute it better over my head and scalp and I get better lather too. I might do that twice or CWC if I’ve used oils or it has been awhile since I shampooed.

JasminxCat

Probably too much because I like a lot of lather. I use 2 quarter size dollops for the front and back then work it through the rest, then I usually condition twice

Cg

I use, ~, 0.2 oz/6 ml for the first shampoo and 0.1oz/3 ml for the second. The first shampoo doesn't suds much and I let it soak down the full length. The second shampoo is scalp only, and is probably shampoo overkill but I like all those suds. I would guess every scalp (I have a tiny pinhead) and every texture of hair determine its own unique requirements. Plus a lot of people want plenty of suds with every shampoo, so personal preference is also a factor.

lapushka

I use about a sample size amount, so easily 50 ml per wash. I weekly wash though, bent over, and glob my back, my top and my 2 sides (in one glob divided in 2 palms). Then I suds, wash, pour a tiny bit of water over my head, suds it all again and add a bit of shampoo on all regions mentioned before, suds again, and rinse clear. It is a process in my case, but I have SD, I need to really scrub & wash well and especially because I only do it once a week.

But it works for me! Really well actually.

I don't believe the saying you only need a dime-size. Yeah right. If your hair still comes out oily day after? Try more shampoo in your wash, for sure!

foreveryours

My shampoo comes in liter bottles (33 oz) which last me maybe 8 weeks? Wash days are 2x each week and I shampoo all my hair 2x each wash using a precisely measured palmful of shampoo each time so that works out to be 1 oz "per wash"?

Bri-Chan

Shampoo last me a lot of time. But more creamy texture last less than liquid-gel texture. Like, Fructis shampoos always last me SO much! I would say, I use between half tablespoon and 1.3 tablespoons. So like 7 ml for things like Fructis and around 20 ml for the thickest shampoo (often miiild sulfate free and cowashes).
Since beginning of October, I've been using the same two shampoo, they are both gel but thick (like Pantene) and I've used 'round 180 ml of shampoo. I wash my hair twice a week, so I've used approximately 9,5 ml per wash.

Jane99

I have no idea. I don’t keep track of how long shampoo lasts. I use a couple different bottles at a time and other people use them too. It’s about a half dollar size amount. I know that’s not what you’re looking for but it’s as precise a measurement that I can give.

Solovey

A lot because I have very oily, thick hair and hard water. Probably in the ballpark of 40-60 ml every other day so yeah I go through it quickly haha

MusicalSpoons

I've wondered about this myself; with my washes more spaced out I have to use more each wash, to a certain point. I tend to use two big palmfuls, 1 1/2-ish for the first shampoo then another half for the second. I have no idea how many ml that would work out to be, and my washes are so far apart it would be hard to keep track. Maybe weighing would give an insight.

(I had already used some of the current bottle for clarifying my lengths, and washing my pillowcases/bonnet/some other hand-washed items before my scalp was calm enough to start using it for most washes. Previous products have been used on hair and body, or for scalp washes in between so would have had no way to reliably keep track.)

embee

When I used shampoo, I had a plastic tumbler of warm water with a squirt of shampoo in it. Mix that up and pour it on top of my head. Let the shampoo run down as it wanted, work a bit on my scalp, and then rinse rinse rinse. This way I did not need conditioner, as I didn't strip all the oils from my hair. Very encouraging, as the conditioner always weighed down my thin/fine/straight/stringy hair and made me sad, even though it was easy to comb.

Now I'm NW/SO except for occasional scalp rinse, but that's courtesy of Old Age. Pffft.

Kat

Um... as much as it takes? I know, not helpful. But, I don't keep track of how many times I use a bottle of shampoo before it's empty (I would never remember to, for one), so I have no idea. It's variable. If my hair is more oily, I'll use more. I can say that I'm pretty sure a shampoo bar will not last nearly as long as a bottle of shampoo for me, despite what they claim about shampoo bars lasting longer.



Probably too much because I like a lot of lather. I use 2 quarter size dollops for the front and back then work it through the rest, then I usually condition twice

I do, too, but honestly, I feel like lather is easier to distribute through my hair (it's not just "oh lather is psychological so you only 'feel' like you're getting clean"). (Also, it lets me know my hair is clean-- oily hair won't lather as much, so once it lathers up-- on the second shampooing-- I know it's clean, or rather, that I got enough of the oil out on the first pass for it to be able to lather up for the second, and that the second lather will finish the job.)

illicitlizard

Never measured, but maybe I will one day, this is an interesting question!
From looks alone I'd say shampoo is about 20-30ml (1-1.5 Aussie tbsp) per wash, depending on whether I bring it down the lengths or not. Co-wash which I do occasionally with tresemme botanique uses god knows how much, likely at least 60ml per wash because it doesn't suds so it's harder to spread around.

missmelaniem

I love this thread and learning what others do

Estrid

A lot.

I've tried to do the amount the hairdressers say but I don't feel like I get my hair clean, it feels like it's gone from my hands after touching just the top part. I currently got a shampoo that's with a pump, and I use about three pumps now. One pump is probably the recommended amount... First one goes on the front part of my head, second goes on the sides and up, and third in the back. Maybe I should try to have it work with two pumps, but I don't like it when I've tried to use less only to have it dry and then see that I didn't get it clean... :nono:

mermaid lullaby

I also use shampoo on the front, flip it over, shampoo the back and sides. I dont follow the one tablespoon amount, it's not enough for me!

lapushka

A lot.

I've tried to do the amount the hairdressers say but I don't feel like I get my hair clean, it feels like it's gone from my hands after touching just the top part. I currently got a shampoo that's with a pump, and I use about three pumps now. One pump is probably the recommended amount... First one goes on the front part of my head, second goes on the sides and up, and third in the back. Maybe I should try to have it work with two pumps, but I don't like it when I've tried to use less only to have it dry and then see that I didn't get it clean... :nono:

Exactly how I felt when I started. And it's got nothing to do with the length of my hair. Yes, I suds up the lengths more yes than no, but that's just a smidge that goes on there, I really don't use a lot there, most of it... goes on my head. I use about 50ml. I just happened to have a couple sample sizes this year and it was the *exact* amount I needed, it turned out. Surprise there! But that's how I know it's that exactly.

Finda

I do, too, but honestly, I feel like lather is easier to distribute through my hair (it's not just "oh lather is psychological so you only 'feel' like you're getting clean"). (Also, it lets me know my hair is clean-- oily hair won't lather as much, so once it lathers up-- on the second shampooing-- I know it's clean, or rather, that I got enough of the oil out on the first pass for it to be able to lather up for the second, and that the second lather will finish the job.)

That's my experience as well. When I tried the reccomended walnut size amount, I got sticky patches on my hair. Now, I always use more than the recommended amount and I lather it up with a bit of water in a bottle. Then I squeeze the lather everywhere it needs to go.

illicitlizard

That's my experience as well. When I tried the reccomended walnut size amount, I got sticky patches on my hair. Now, I always use more than the recommended amount and I lather it up with a bit of water in a bottle. Then I squeeze the lather everywhere it needs to go.

The recommended amount never made sense to me. Especially since my hairdresser maintained that high end salon products only require the tiniest amount but cheap options required a whole lot more - so there's barely any cost difference! They have the same surfactants so uuuh, doubt that. I also used to get sticky patches, particularly deep in the thicker section at the crown of my head, when I only used a tiny amount of shampoo.

Wendyp

I use a big glopful in my hand, but I only shampoo once and with no sulfates I need to make sure my scalp is squeaky clean. Otherwise my scalp enacts war on my hair. Since I condition first the suds are only on my scalp and I’m careful to not squish it thorough the ends.

shelomit

For me, it depends a lot on the shampoo. There are some that just don't seem to have a good texture to spread across the entire scalp with the amount that I usually use. For example, I tried a Cake brand shampoo a year and a half or two years ago that seemed to require a whole lot of watering down and reapplying to actually get it to cover my scalp. (missmelaniem is probably correct about the utility of watering it down in a secondary container rather than on top of one's own head! Oops.) But ordinarily, I use Suave Daily Conditioning, which takes three blobs that are maybe three centimeters wide each when I squeeze them into my palm to spread across the whole scalp.

I've had the same bottle for at least three years--although I also use it to treat the laundry if I have any kind of greasy stain to wash out, so that's eating away at it, too. I only have to shampoo every few months.

EdG

I use maybe two tablespoons. I put the shampoo at the bottom of a large plastic food container, fill it with water, stir, and apply.
Ed

blackgothicdoll

I wash my hair in sections, and use a very small drop per section... maybe two-fingertips sized of a drop. So I think in total I would use two coin size as the very, very most. That's enough to cover my scalp and then suds all the way down to my ends, but my hair is pretty short in comparison. I'm sure I'll use more if my hair ever gets longer.

lapushka

The recommended amount never made sense to me. Especially since my hairdresser maintained that high end salon products only require the tiniest amount but cheap options required a whole lot more - so there's barely any cost difference! They have the same surfactants so uuuh, doubt that. I also used to get sticky patches, particularly deep in the thicker section at the crown of my head, when I only used a tiny amount of shampoo.

Yes that is why when I went to a salon they always slathered my head in shampoo. :rolleyes: But then when they try and sell you product, they come along with that Spiel. And I'm like thinking, "wait are you now saying you just used cheap shampoo on my hair". Huh? :lol:

sipnsun

It really depends on the shampoo I'm using. Currently I'm using Calia's moisturizing shampoo and I scrub twice each time and use about a tablespoon per wash. I only wash my scalp and let the suds run down my length to clean it. When I use Living Proof or Accure (the other shampoos in my rotation) I can get by with one wash and less product, about a teaspoon.

Suortuva

Very little, maybe a teaspoon, max. And I usually feel that's more than enough. My shampoos last forever. But I use crazy amounts of different conditioners.

But I have thin and very dry hair that's not particularly long.

Kat

The recommended amount never made sense to me. Especially since my hairdresser maintained that high end salon products only require the tiniest amount but cheap options required a whole lot more - so there's barely any cost difference! They have the same surfactants so uuuh, doubt that. I also used to get sticky patches, particularly deep in the thicker section at the crown of my head, when I only used a tiny amount of shampoo.

I never understood it because I was like, "Um... no matter how well it cleans, I still need a certain amount to cover the surface area I'm trying to cover?" (That's the problem I have with "when you oil your hair, you only need a couple drops!" Yeah, and which two-square-inches of my hair should I put them on??)

illicitlizard

Yes that is why when I went to a salon they always slathered my head in shampoo. :rolleyes: But then when they try and sell you product, they come along with that Spiel. And I'm like thinking, "wait are you now saying you just used cheap shampoo on my hair". Huh? :lol:
YES! They always do the exact same for me, use so much to shampoo in the bowl but apparently upright in my shower I'll need 1/4 the amount :bs:


I never understood it because I was like, "Um... no matter how well it cleans, I still need a certain amount to cover the surface area I'm trying to cover?" (That's the problem I have with "when you oil your hair, you only need a couple drops!" Yeah, and which two-square-inches of my hair should I put them on??)
Pffft yep, I agree with this one too, I guess it's :magic:. You can definitely cover a fair way if you spread it over your hands and add water, but not so much that you only need like 1 tsp/wash in my experience, there is a threshold below which you're simply not going to cover all the hairs

lapis_lazuli

Uh, probably "too much" :p but at least a palmful every shower. My shampoo doesn't make suds so I might overdo it. But I also want it to coat the entire length on the wash-out. I'm glad I'm not the only one who's generous with the shampoo!

Edit: I realized when my hair's fully wet, I sometimes find it hard to get my fingers underneath it as it's being weighed down, so I might overcompensate to make sure at least SOME shampoo reaches my scalp. In any case, it works. But I have noticed it's becoming harder with length. Another point for scalp-only washing.

MusicalSpoons

Uh, probably "too much" :p but at least a palmful every shower. My shampoo doesn't make suds so I might overdo it. But I also want it to coat the entire length on the wash-out. I'm glad I'm not the only one who's generous with the shampoo!

Edit: I realized when my hair's fully wet, I sometimes find it hard to get my fingers underneath it as it's being weighed down, so I might overcompensate to make sure at least SOME shampoo reaches my scalp. In any case, it works. But I have noticed it's becoming harder with length. Another point for scalp-only washing.

When I wash I've usually wet and put on conditioner beforehand, but it doesn't absorb much water because of the pre-oiling and I squeeze as much out as possible before applying the conditioner. So it's about as wet as if it had been sat in a towel for half an hour, maybe less so. When I do the first shampoo, I take the bun out and hold the mass up away from my scalp and aim the water only on my roots, so for the first shampoo it's not *too* heavy. Obviously I rinse so all of the hair gets heavy with water by the second shampoo, but with it being half clean it's a bit easier to get in there than the first shampoo would be if my whole hair were completely wet before shampooing. If that makes any sense :lol: It made a HUGE difference for me, as I did struggle to get to the roots with the weight of fully and thoroughly wet hair when done the usual way.

On the rare occasion I don't CWC (really rare, only if I'm desperate) I still aim the water on my scalp at first so the lengths don't get very wet and heavy for the first shampoo.

Kat

Uh, probably "too much" :p but at least a palmful every shower. My shampoo doesn't make suds so I might overdo it. But I also want it to coat the entire length on the wash-out. I'm glad I'm not the only one who's generous with the shampoo!

Edit: I realized when my hair's fully wet, I sometimes find it hard to get my fingers underneath it as it's being weighed down, so I might overcompensate to make sure at least SOME shampoo reaches my scalp. In any case, it works. But I have noticed it's becoming harder with length. Another point for scalp-only washing.

Yes, I always try to be very careful about this, too. When using a shampoo bar, I'll actually lift up sections of my hair and get the bar in there. I'll do it with liquid shampoo as well, just not as methodically. I'll squish the lather all around as much as I can, try to separate sections, etc. (Although I don't find scalp-only washing any easier in this regard-- the hair is still lying flat/sticking to my head and possibly blocking shampoo from getting to the scalp.)

lapushka

My mom just washed her hair the 14th, so couple days ago. She really does use a dime-size, but it is so thin, it's overkill to use more on it. Her lengths are like really barely there, I mean her scalp is still all covered, and it's a sharpie size ponytail, thereabouts. But washed bent over, that's all she really needs!

I think it also goes with the bulk & thickness of your hair. I need 50ml or 3 big globs (palm size) to spread it all about. I also suds like you wouldn't believe, but my hair is dense at the scalp, and so it needs it. And after a week, there's gunk, not to mention the product build up down the lengths of it.

Yeah I just don't tell people, just here. Because they would look at me funny and blame it all on the long hair. :rolleyes:

Kat

Yeah I just don't tell people, just here. Because they would look at me funny and blame it all on the long hair. :rolleyes:

Yup. Or blame it on the fact that I only wash once a week-- "ew it means your hair is super-dirty if you have to use that much." Then again, if the topic comes up or people ask, I say I wash my hair two or three times a week (and even that probably still makes them think I'm "dirty").

lapushka

Yup. Or blame it on the fact that I only wash once a week-- "ew it means your hair is super-dirty if you have to use that much." Then again, if the topic comes up or people ask, I say I wash my hair two or three times a week (and even that probably still makes them think I'm "dirty").

I just don't talk about it, really. I always say that I wash it when it needs it (aka gets oily), and that is vague enough not to get the "ick" response.

I do feel like I need to really clean it after a week, though; there *is* that!

sapphire-o

I have a wall dispenser. Each push give me about a dime size. I use about 4 pumps for the first wash and 3 pumps for the second wash. I have to apply shampoo over a few different sections on my head to make sure they're really clean.

When I was a new immigrant (and new to the world of liquid shampoo), someone gave me a whole bunch of free shampoo samples which had 15ml in each packet. I think that has pretty much molded my expectations on how much I'm supposed to use. :D

Finda

The recommended amount never made sense to me. Especially since my hairdresser maintained that high end salon products only require the tiniest amount but cheap options required a whole lot more - so there's barely any cost difference! They have the same surfactants so uuuh, doubt that. I also used to get sticky patches, particularly deep in the thicker section at the crown of my head, when I only used a tiny amount of shampoo.

That sounds exactly like the problem I had, for years I'm embarrassed to say. I don't know why it took me so long to figure out a solution. I was not using enough shampoo and therefore wasn't able to distribute thoroughly. Washing in sections and a lot more shampoo finally worked. In the beginning I actually clipped away my crownhair, so I wouldn't miss a spot lol. I'm very relieved to read this is normal washing practice for many around here. I thought for sure I was too daft to wash my hair.

shelomit

I just proved my above statement wrong: I'm hennaing today, so I did a full-hair shampoo yesterday. To get the lengths as well as the scalp, it takes a full handful of shampoo prior to watering down.

ExpectoPatronum

I do something similar to lapushka because my hair is really dense at the scalp - my roots will not be cleaned if I try to apply shampoo all over without sectioning. I usually divide in three sections and apply a small glob to each section - maybe a tablespoon? Now I'm curious but I'm not washing until tomorrow so finding out for certain will have to wait :(

I only really apply shampoo to my scalp and let the suds rinse down my length. If I need to shampoo my length, then obviously a little more shampoo is used than what I said above but that really doesn't happen often. Letting the suds rinse down is good enough for me :)

Kat

I just don't talk about it, really. I always say that I wash it when it needs it (aka gets oily), and that is vague enough not to get the "ick" response.

I do feel like I need to really clean it after a week, though; there *is* that!

I don't volunteer the info, necessarily, but sometimes it comes up, or I might mention that I just washed my hair last night (which kind of implies it doesn't get washed every day), or something.

For me I find a week is about the point where I can start to tell that it needs a wash (as in, "okay, I wouldn't wear it down because it's starting to look a bit oily"), so it's not just laziness... I'm just lucky that my hair only needs washing about as often as I wash it. :) Past that and I'm not happy with the state of it.

lapushka

I don't volunteer the info, necessarily, but sometimes it comes up, or I might mention that I just washed my hair last night (which kind of implies it doesn't get washed every day), or something.

For me I find a week is about the point where I can start to tell that it needs a wash (as in, "okay, I wouldn't wear it down because it's starting to look a bit oily"), so it's not just laziness... I'm just lucky that my hair only needs washing about as often as I wash it. :) Past that and I'm not happy with the state of it.

Can't go past a week either, or my SD (seborrheic dermatitis) will hate me for it as in: I will get flare-ups, no doubt about that!

Yeah, it's odd how stuff comes up in conversations, right? I know it's not always easy to avoid it.

Solovey

This thread makes me feel better! I still use a 2:1 ratio of conditioner to shampoo but I always thought I used way more than normal but I guess not considering how dense my hair is(5" pony)

MusicalSpoons

Yup. Or blame it on the fact that I only wash once a week-- "ew it means your hair is super-dirty if you have to use that much." Then again, if the topic comes up or people ask, I say I wash my hair two or three times a week (and even that probably still makes them think I'm "dirty").


I just don't talk about it, really. I always say that I wash it when it needs it (aka gets oily), and that is vague enough not to get the "ick" response.

I do feel like I need to really clean it after a week, though; there *is* that!


I don't volunteer the info, necessarily, but sometimes it comes up, or I might mention that I just washed my hair last night (which kind of implies it doesn't get washed every day), or something.

For me I find a week is about the point where I can start to tell that it needs a wash (as in, "okay, I wouldn't wear it down because it's starting to look a bit oily"), so it's not just laziness... I'm just lucky that my hair only needs washing about as often as I wash it. :) Past that and I'm not happy with the state of it.

I would like to be able to wash my hair as often as it needs to keep clean but unfortunately can't even say that. Both in terms of the energy a full wash requires, and because my scalp can't tolerate being shampooed that often (would need to be every 2-3 days). Co-washing takes way too much energy, plus the single solitary suitable conditioner I found was discontinued and I don't have the mental energy to try finding a replacement, nor am I willing to subject my scalp to experimenting with products unless I absolutely have to. So, full wash between 2~3 weeks and a scalp wash or two if I have to look presentable in between.

I do wash as often as *absolutely needed* though in terms of scalp health; it tolerates being oily for 2 or 3 weeks and then I feel it reach the limit and *need* washing. It has built up the time it tolerates being oily though, from half a week to a week then gradually beyond a week to where I am now. That was kind of cool to realise. It looks just as greasy by the end of day 2 as it ever did but is thankfully perfectly happy for longer :)

Edit: and it rarely comes up in conversation with anyone who is not immediate family. When it does, I tend to say about scalp washing if I need it and not elucidate much further.

lapushka

I would like to be able to wash my hair as often as it needs to keep clean but unfortunately can't even say that. Both in terms of the energy a full wash requires, and because my scalp can't tolerate being shampooed that often (would need to be every 2-3 days). Co-washing takes way too much energy, plus the single solitary suitable conditioner I found was discontinued and I don't have the mental energy to try finding a replacement, nor am I willing to subject my scalp to experimenting with products unless I absolutely have to. So, full wash between 2~3 weeks and a scalp wash or two if I have to look presentable in between.

I do wash as often as *absolutely needed* though in terms of scalp health; it tolerates being oily for 2 or 3 weeks and then I feel it reach the limit and *need* washing. It has built up the time it tolerates being oily though, from half a week to a week then gradually beyond a week to where I am now. That was kind of cool to realise. It looks just as greasy by the end of day 2 as it ever did but is thankfully perfectly happy for longer :)

Edit: and it rarely comes up in conversation with anyone who is not immediate family. When it does, I tend to say about scalp washing if I need it and not elucidate much further.

Unfortunately, with my SD I don't have the "luxury" to wait it out until I have energy. I *have to* whether I want to or not. But that is why my mom helps me out. I always say "I" wash it, but it's a 2 person job, honestly (too cumbersome to keep saying that every time though).

lapis_lazuli

Yes, I always try to be very careful about this, too. When using a shampoo bar, I'll actually lift up sections of my hair and get the bar in there. I'll do it with liquid shampoo as well, just not as methodically. I'll squish the lather all around as much as I can, try to separate sections, etc. (Although I don't find scalp-only washing any easier in this regard-- the hair is still lying flat/sticking to my head and possibly blocking shampoo from getting to the scalp.)

The sectioning is very necessary. On each side I have to do the top, crown, temple, and nape separately and some parts are extra uncooperative. Hmm, I think scalp-washing is easier for me because I do it inverted into the sink, so my scalp hair is hanging down and my head is easily accessible. I've found it to work very well!


When I wash I've usually wet and put on conditioner beforehand, but it doesn't absorb much water because of the pre-oiling and I squeeze as much out as possible before applying the conditioner. So it's about as wet as if it had been sat in a towel for half an hour, maybe less so. When I do the first shampoo, I take the bun out and hold the mass up away from my scalp and aim the water only on my roots, so for the first shampoo it's not *too* heavy. Obviously I rinse so all of the hair gets heavy with water by the second shampoo, but with it being half clean it's a bit easier to get in there than the first shampoo would be if my whole hair were completely wet before shampooing. If that makes any sense :lol: It made a HUGE difference for me, as I did struggle to get to the roots with the weight of fully and thoroughly wet hair when done the usual way.

On the rare occasion I don't CWC (really rare, only if I'm desperate) I still aim the water on my scalp at first so the lengths don't get very wet and heavy for the first shampoo.

Oh wow, that's some problem solving! I'd not thought about using oil like that, that's pretty interesting. I personally like just WC, but I could try to wet only my scalp until I get the shampoo applied. I think I usually soak the whole thing as quickly as possible to concentrate all the hair into one place...and avoid the feeling of random wet strands clinging to my body *shiver* I will experiment next wash because the pulling is getting a little obnoxious. Last resort it's getting draped over the shower rod :laugh:


Edit: and it rarely comes up in conversation with anyone who is not immediate family. When it does, I tend to say about scalp washing if I need it and not elucidate much further.

Yup yup exactly. That's for me to know and me to know :rolling:

lapushka

The sectioning is very necessary. On each side I have to do the top, crown, temple, and nape separately and some parts are extra uncooperative. Hmm, I think scalp-washing is easier for me because I do it inverted into the sink, so my scalp hair is hanging down and my head is easily accessible. I've found it to work very well!



Oh wow, that's some problem solving! I'd not thought about using oil like that, that's pretty interesting. I personally like just WC, but I could try to wet only my scalp until I get the shampoo applied. I think I usually soak the whole thing as quickly as possible to concentrate all the hair into one place...and avoid the feeling of random wet strands clinging to my body *shiver* I will experiment next wash because the pulling is getting a little obnoxious. Last resort it's getting draped over the shower rod :laugh:



Yup yup exactly. That's for me to know and me to know :rolling:

Bent over here as well. I glob palm fulls on the back, the top (have to go in between the hair as it hangs down), and then the last glob I divide over 2 palms and push over the top of my ears. It works really well. Then I lather up the back, then the top, then the 2 sides, then "smoosh" all the lathered bits together and go over my entire head, and then after having lathered it all up very well, I short-rinse meaning I just flip the water over it very quickly (getting just the sudsy bits off) and I lather up again with just a tad more shampoo (really just dime sizes then) over each section. And I sort of repeat.

Works really really well!

Kat

The sectioning is very necessary. On each side I have to do the top, crown, temple, and nape separately and some parts are extra uncooperative. Hmm, I think scalp-washing is easier for me because I do it inverted into the sink, so my scalp hair is hanging down and my head is easily accessible. I've found it to work very well!


I think that probably does make it easier in some ways. I can't manage to wash my hair in the sink (for one, my head won't fit in there...). I find the problem with scalp washing is that it's difficult for me to keep the rest of my hair out of the way-- I end up holding my braid up with one hand and trying to wash with the other, and that's awkward and not easy (with a sink I could find a way to drape it over something. I always joked that I needed to put a hook in the ceiling of my shower that I could hook my braid on so I didn't have to hold it up myself!)-- and also discovered that scalp wash or full-hair wash, I still have to wait for hair to dry (just not all of it), so I gave up on scalp washing. (But, my hair did not mind a full wash three times per week. I was only trying scalp washing in hopes it would be easier/faster/less annoying than a full wash in waiting for my hair to dry.)

I did find, however, that no matter what, I need to wash all of my hair periodically. For a while in college I was doing scalp-only washes since that's all that really "needs" it (the bathroom there had a big utility sink, so it was easy to use that). But I found that after a few weeks, the length of my hair was really dry. I'm not sure if for some reason it needed to be wetted periodically, or if it was the regular conditioning it was missing, or what.

cutie-pie

I use about a tablespoon but I take a bowl with water, mix shampoo in it and wash my hair using the soapy water. I find it makes my hair less dry

Ever get ready for a long trip and wonder whether that travel-sized bottle of shampoo is going to cut it? Should you throw in another bottle?

How the hell do you know how long a travel-sized product will last?  To answer that question, we decided to test how long we could go on a full, TSA-approved bottle of shampoo. Turns out most people should gauge around 2 weeks, maybe more, depending on a couple of factors.

That doesn't mean the Internet agrees, though. TripAdvisor poster TABofotd claims a travel-sized shampoo will last 3 weeks, conditioner will last 6 weeks, hair spray and hair gel will last a month.

For a dude, that might work. As a girl, I completely disagree — and so does Aida, Founder at LippieHippie.com.

If I have a particularly long trip coming up, I’ll throw in more one bottle of the same type, i.e. two shampoo bottles, to cover my bases. If I don’t have the space for the extra bottle, I still save more money from not checking in ($25 for a domestic bag) and buying an extra travel-sized bottle (no more than $1-3) on the road.

You still come out ahead in the end.

Consider the size of the shampoo bottle

First, we need to be clear about how big a travel-sized bottle actually is.

The first thing to keep in mind is that note every “travel-sized” product is 3 or 3.4 ounces; all it means when the manufacturer slaps “travel-size” on there is the amount of liquid in there is less than the TSA limit.

(I’ve had plenty of travel-sized products with about only one ounce in there so these days I scrutinize that number on the bottom a little bit more in the store. One ounce will barely get me through three days or four days!)

The actual amount you’re technically allowed to carry on is 100 mL or 3.33 ounces.

Most of the world knows it’s just easier to default to 100 mL but if you’re from the States, most people generally round down to a flat 3 ounces because that’s a heck of a lot easier to remember.

However, if you’re really want to squeeze out every single drop of liquid, it's possible to get away with 3.4 ounces.

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Taking into account personal preferences

The second thing to remember is that personal usage will differ from everyone else because everyone’s got their own showering habits.

For instance, I have long, thick Asian hair and sometimes I’ve really got to use more than the average person just to get a good lather going on. On top of that, I go through conditioner much faster than I use shampoo to comb out all the tangles.

Some people also condition only occasionally; I’m forced to condition every day.

If I use about a tablespoon of product each time—a generous amount in my opinion—that should last me about 6 uses in a 3-ounce bottle (6.8 uses in a 3.4-ounce bottle).

On the realistic end, if you’re conserving how much you’re using each time by half, it is possible to get away with 12 uses or more (13.5 uses in a 3.4-ounce bottle). This means a traveler is averaging about 1.5 teaspoons or less each time.

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Assuming you shower once a day, at the bare minimum, and depending on the amount of product, a travel-sized bottle should last you anywhere from a week to two weeks.

Guys should have it much easier.

How long travel shampoo actually lasted in real life

To make it easy, I took two of the most common sizes and made a couple of calculations to get some estimates on how long some shampoo—or even body lotion—would last me:

Bottle Size

Amount you decide to use

1 Tbsp 1.5 Tsp 1 Tsp 3 ounces (89 mL)

6

12

18

3.4 ounces (100 mL)

6. 8 (~7)

13.6

20.3 (~20)

To see how this held up in real life, I took a 3-ounce bottle of shampoo with me on the road… and I kept counting until I ran out of product.

Averaging a teaspoon (I needed far less for this particular brand), which is far less than what I usually use, it lasted 22 uses or 22 nights, or roughly three weeks. This means I got four more uses out of it than I thought I would.

(I was trying to squeeze every little bit out at the end, so there's that.)

The above chart is only a guideline but there's room for deviation there. Says my unscientific test. Your mileage may vary depending on how much hair you have.

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What is the average amount of shampoo per bottle?

How Long Travel-Sized Shampoo Will Last You