K18 Biomimetic Hairscience

TripleBright Oxidation Defense Purple Shampoo Foam

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$31.20 $39.00

What it is: An easy-to-use purple shampoo foam for brighter, longer-lasting blonde with triple-action tech that removes and neutralizes brass with no

SKU Code: P521730:2966455
Model: P521730:2966455
Reference: Sephora
Brand: K18 Biomimetic Hairscience
Categories: Hair, Shampoo & Conditioner, Shampoo

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K18 Biomimetic Hairscience

What it is: An easy-to-use purple shampoo foam for brighter, longer-lasting blonde with triple-action tech that removes and neutralizes brass with no staining.

Hair Texture: Straight, Wavy, Curly, and Coily

Hair Type: Fine, Medium, and Thick

Hair Concerns:
- Brassiness
- Color Fading
- Color Safe

Key Benefits:
- Removes brass-inducing metals and minerals with ionic detox
- Neutralizes brassiness with precision violet technology that won’t stain or overtone
- Defends against future brass with biopolymer to help prevent reattachment of metals and minerals during washing

Highlighted Ingredients:
- K18 Triple-Action Technology: Removes metals and minerals, neutralizes brass, and defends against future brass.

Ingredient Callouts: This product is vegan.

What Else You Need to Know: This is the first triple-action blonde protection for blonde like new, hair like new.* It’s powered by K18 triple-action technology, TripleBright, which not only neutralizes existing brass but also removes up to three months of brass, causing hard water buildup in one wash* and protects against future brassiness by preventing metals and minerals from reattaching. The easy-to-apply foam neutralizes brassiness without staining or over-toning, so ideal hair tone is restored and evened* instantly and over time for all highlighted and lifted tones.

*k18hair.com/disclaimers

Fragrance Description: Top notes: blood orange, grapefruit, mandarin, tangerine. Middle notes: cyclamen, jasmine, wild honeysuckle. Dry-down notes: cedarwood, tonka bean, sandalwood.

Clinical Results: In a scientific test following 1 application of TripleBright:
- 1 wash removes up to 3 months of brass from hard water

In a study of 37 bleached/highlighted subjects after using TripleBright at least 1X a week for 3 weeks:
- Ideal hair tone is restored and evened

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Clean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.

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Images from reviews

Verified Purchase

6d ago

Recommended

Eliminates brass

This is super effective, brass is gone. My only critique is that when I’m using it, it makes my hair feel so dry that it’s hard to rake my fingers through my hair during the shampooing process when I want to spread it out evenly. Still it’s the most effective purple shampoo I have found.

arleensita

Verified Purchase

1w ago

Never again

I was so excited for it but it is a huge disappointment ; I’ve never seen such a drying shampoo before. ıf you want your hair turn into a stone you can buy. I had super soft hair although I bleach my hair for years. It destroyed my natural wavy lines

volauventy

Verified Purchase

2w ago

Super drying

I have used Davines and olaplex purple shampoos and they both have their plus and minuses. I was excited to try k18 as I like a lot of their other products. This one was an extreme let down. Not only was the price high but it was the most drying purple shampoo I’ve ever used. My hair looked beyond frizzy after using it. Also I noticed the brassniess in my hair had very little improvement. I’ll stick to the other purple shampoos.

jodi19

1mo ago

This is a very true 3 star product….they almost have it but need to try again. I have been using this since I got it during the sale in April so it’s been a while. I have been highlighting my hair for 18 years now and have tried a number of purple shampoos. My favorite to give me my cool tone blonde (I have cool tone skin/blue eyes so warmer tones of blonde look terrible on me) is the Shu Eumura. It is very expensive so I decided to try this slightly more affordable option. It does a superb job of removing any brassiness and really leaves my hair a gorgeous cool blonde. I just hate the experience. I have to pump a very large amount to cover all my hair (and I have fine, medium/longish hair) and it doesn’t really lather that much so my hair just feels kind of heavy and dirty afterward. Because of the foam, it leaks into the cap and when I take it off it flings purple onto my nice white curtain. It does feel slightly dry but I find that all purple shampoos make my hair dry to a degree. Hoping they turn this into an actual shampoo or somehow create more lather to cleanse the hair because it does have great color payoff.

britt05

2mos ago

Not for natural grey hair

Not the best for natural gray/white hair. Definitely leaves a purple tint. Resolved this by mixing with a non purple shampoo, and rinsing quickly. I do notice some improvement from brassiness. I like the foam. A little drying, I won’t buy again but it is a good product just better for people with color treated hair it would seem.

kittyv42

Verified Purchase

2mos ago

Did not work. :-(

I followed the directions, this did not work for me. I have used a lot of purple shampoos and this didn’t work. My hair is as brassy as it was before k18 purple shampoo treatment, a bit shocked to not see even a little cooling, my hair usually takes purple shampoo quickly and noticeably. Fine, curly bleached hair.

luxurywithlo

Verified Purchase

2mos ago

Not worth the dollars

I wasn’t impressed with the shampoo and had to return it. It didn’t do anything to tone my yellow ends and didn’t even make my hair feel soft. Expensive so am very happy with Sephora’s return policy. I went back to my tried tried and true Alurum

Anonymous

Verified Purchase

2mos ago

Recommended

Perfect for a refreshed look

After having dark hair for the longest time now I went a lot lighter and I needed a purple shampoo. So I went with the K18 line. This works amazingly good! Brightened to the correct level without looking dull. It’s so nice to be blinder again and the grassiness just gets taken away with a wash!

karenk824

3mos ago

Recommended

Excellent Purple Shampoo

Removes brassiness from the first wash. I was incredibly impressed with its performance and I continue to use this since I have well water. It’s truly a game changer, but like others have mentioned, you will still need to make sure you condition afterwards.

trixie

Verified Purchase

3mos ago

Recommended

nice purple toning shampoo

I purchased this product after seeing it recommended by a hairdresser online who specializes in gray blending as I am currently going gray; I have used other purple shampoos and masks and conditioners; I like the foam consistency of this shampoo; it doesn't make a mess in my shower; i read all the reviews before using it and so I was sure to use a nourishing mask after shampooing; this shampoo did tone my blonde and grey maybe a little better than other products I had been using; its pricey, but I only use it maybe once every 10 days and it should last a long time

zgirl76

-K18 Triple-Action Technology: Removes metals and minerals, neutralizes brass, and defends against future brass.

Water(Aqua)(Eau), Cocamidopropyl Hydroxysultaine, Sodium Cocoyl Alaninate, Sodium Methyl Cocoyl Taurate, Propanediol, Polysorbate 20, Cocamidopropyl Betaine, Trisodium Dicarboxymethyl Alaninate, Sodium Phytate, Polyquaternium-77, Glycerin, Sodium Polyaspartate, Sodium Citrate, Sodium Gluconate, Citric Acid, Tetrasodium Glutamate Diacetate, Aspartic Acid, Caprylyl Glycol, Cocamidopropyl Dimethylamine, Sodium Glycolate, Sodium Hydroxide, Sodium Benzoate, Sodium Chloride, Acid Violet 43 (CI 60730), Phenoxyethanol, Fragrance (Parfum), Hexyl Cinnamal, Hydroxycitronellal, Citrus Limon (Lemon) Peel Oil, Tetramethyl Acetyloctahydronaphthalenes, Limonene, Benzyl Salicylate, Citrus Aurantium Peel Oil, Citrus Aurantium Flower Oil.

The list of ingredients is subject to change. Please consult the packaging of the product purchased.

Suggested Usage:
-Apply foam shampoo to wet hair, distributing evenly and lathering from roots to ends.
-Let sit for one to three minutes, then rinse.
-Use weekly.

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