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K18 Biomimetic HairscienceAirWash Dry Shampoo
Product Description
Highlights
A biotech-powered, non-aerosol dry shampoo that delivers a high performance clean - reducing oil and eliminating odor without build-up or white cast.
This is the reinvention of dry shampoo. The future of clean, powered by biotech. This formula helps balance scalp sebum overtime and supports a scalp health.
Clinically proven eliminate odor and reduce oil. Keeps working for up to 3 days*. Tested with just one application on 4-day unwashed hair.
Go 3 days longer between washes*
Results observed in a consumer test of 30 subjects after 4 weeks when asked how many days longer they could go between washes when compared to their usual dry shampoo
Results observed in a scientific test of 30 subjects after 1 use of AirWash Dry Shampoo after 72 hours. Measurements were made by a sebumeter and expert odor grader
100% agree hair and scalp look + feel healthy.*
Results observed in a consumer test of 30 subjects after 3 weeks of using AirWash Dry Shampoo.
Directions
SHAKE WELL. Non-aerosol format may feel slightly damp but will not disturb your style. Hold the bottle 4-6 inches away from scalp for even distribution. Section hair and apply just 1 spray per section. Less is more. Add only as needed. Massage in and brush or style as usual.
If the hair feels gritty or powdery, you may have applied too much product. Brush hair to distribute the product, or reset hair with an in-shower shampoo.
Test results
Touchable volume + bounce for up to 2 daysUp to 2.5x more volume
100% agreed hair had touchable body up to 48 hours
97% agreed hair looked thicker up to 48 hours
Humidity resistant
Composition
Patented odorBIND™ bio-technology uses inspiration from nature to detect, suspend, and clinically eliminate malodors - such as those that develop from oil, bacteria and sweat - releasing a subtle, easily-layered fragrance in their place. Smart-release technology continues working after the first application, eliminating malodors as they develop.Translucent microbeads absorb even excessive oil, without leaving behind visible starchy build-up or white cast.
Biotech-derived Mediterranean microalgae helps balance scalp and controls excess oil production over time.
Ingredients
Water (Aqua) (Eau), Alcohol Denat., Silica, Tetraselmis Suecica Extract, Arginine, Lactic Acid, Sodium Hyaluronate, Glycerin, Mannitol, Gellan Gum, Hydrolyzed Hyaluronic Acid, Sodium Phytate, Tromethamine, Escherichia Coli Extract/Sr-(Methionyl Tripeptide-46 Hexapeptide-40 Decapeptide-27 Methionyl S-Pig Polypeptide-2 Oligopeptide-234 Sh-Oligopeptide-78), Potassium Sorbate, Sodium Benzoate, Citric Acid, Sodium Chloride, Fragrance (Parfum), Linalool, Hexyl Cinnamal, Limonene, Benzyl Alcohol.
This list of ingredients may be subject to change, please consult the packaging of the product purchased.
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Rated 5 out of
5
by
Sarah from
Amazing dry shampoo!
Bit pricey but 100% worth it! No talc like texture, leaves my hair actually looking washed and not just masked in powder. Amazing stuff!
Date published: 2026-03-14
Rated 5 out of
5
by
Lisa from
What sorcery ??
I have very fine, thin hair that cannot go longer than 24hrs without washing…until now! I’ve tried so many dry shampoos and they either don’t make my hair clean, or make it look straggly, or give it a really unpleasant texture. This K18 is amazing - it completely gets rid of any oil and also gives just enough touchable texture that my fine hair isn’t flat and looks instead quite “put together” I am now going 4 days between washes for the first time in my adult life (I’m 44!). I even went for an oil massage, followed by a steam room and then in a hot tub, and this product restored my hair after with no need for washing or styling. This stuff is literally a game changer and worth its weight in gold. I would sell a body part for this. Don’t think on it - get it now!!
Date published: 2026-03-08
Rated 5 out of
5
by
Emma from
Best dry shampoo EVER
I’ve tried all the dry shampoos out there, usually opting for ones that do leave a powdery white cast because at least if I rub that in, I tend to get a cleaner hair look. However, sometimes I’d miss a bit and it would show up in the sun and it was just a pain. I saw an Instagram reel with this dry shampoo showing them apply a spray and then just brush it through to get it clean. I bought the mini version of this as I was sceptical but WOW this stuff is literally magic. I won’t be going back to the other dry shampoos I’ve tried, this is my new go-to. It leaves no white cast, it works within seconds and just can be brushed through for perfectly clean feeling and looking hair!
Date published: 2026-02-26
Rated 5 out of
5
by
Valerija from
Unfortunately worth every penny...
I am never the one to write a review but if this helps even one person who has struggled like myself- it's all worth it. The first time i have tried it was in Sephora store after a long day of shopping, as a girl with fine hair and oily scalp who washes her hair every morning, i wanted to freshen up a little and decided to try this out. To my surprise, me, who has probably tried every dry shampoo out there, i was VERY pleased. It went on like water spray and i continued to walk around the Sephora for 5 more mins for it to dry. I went to check my hair out in the mirror and OMG they felt and looked as if i have just freshly washed them. I later got the smaller version in a Christmas gift set to properly try it out and i am in awe every single time i use it. The smaller bottle is so practical- fits in every bag/ make up bag and you really don't need a lot of it!! If you do over spray it you may see a white residue/ cast but with 3 sprays on each sides really does wonders! Since Christmas, i have recommended this product to every girl I meet- at work, family, gym! Try it out- it really is magical! As well as fresh hair, it gives pretty good volume too but i would buy this product again once i ran out 100%
Date published: 2026-02-23
Rated 5 out of
5
by
Sheona from
Definitely works - great for touch ups.
Bought this based on reviews, and while expensive, it's definitely worth it. You only need 1 or 2 sprays, there's no white cast and it really does absorb. First time I used it, I got another 2-3 days before I needed to wash my hair. It's a must have now with a fringe.
Date published: 2026-01-29
Rated 5 out of
5
by
lorna from
Great dry shampoo
First time trying this dry shampoo although goes on wet it absorbs really fast and leaves my hair feeling like I have just washed will definitely repurchase
Date published: 2026-01-20
Rated 5 out of
5
by
Louise from
Worth the price
I've tried loads of dry shampoos over the years as I love using them to give a bit of volume to my fine, straight hair, and this one is by far the best. It comes out wet so it doesn't leave your hair looking powdery and feeling weighed down, it just looks like you've washed your hair. I also like that I can use this to kind of reset my bangs when they're looking a bit weird without having to use a heat tool. I just spray on and reshape. This is an expensive product, but I don't think I can be without it now.
Date published: 2026-01-19
Rated 5 out of
5
by
Charlotte from
Love it!
Was reluctant to buy this due to the cost, but I really don’t like the powdery dry shampoos so decided to give it a go and so glad I did! I have dark brown hair that sometimes starts looking greasy after 24 hours and this just makes it look clean again with no powdery residue on my hair, and it seems to keep it clean longer as well! You only need a tiny amount, I use maybe 5 or 6 sprays for my whole scalp then rub it in, and can always add a bit more if any areas still look greasy. Doesn’t make my hair feel dry or anything. Love it! It’s a small bottle but hoping it’ll last a decent length of time as amount needed is so small, and will definitely repurchase!
Date published: 2025-11-18
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