What it is: A strengthening pre-shampoo treatment that repairs bonds and removes calcium build-up, leaving hair 99 percent stronger and healthier feeling.Hair Texture: Straight and WavyHair Type: Fine, Medium, and ThickHair Concerns:- Damage, Split Ends, and Breakage- Dryness- ShineKey Benefits: - Removes calcium buildup for stronger hair inside and out- Repairs persistent damage, reversing stiffness and dullness for enhanced shine- Visibly reverses hair damageHighlighted Ingredients:- Citric Acid: This organic acid acts from surface to core to deeply repair bonds and remove calcium build up.- Glycine: This amino acid penetrates hair's inner layer, dramatically reduces breakage, and helps to neutralize dullness, and stiffness.What Else You Need to Know: Premiere repairing treatment visibly reverses hair damage* through innovative dual-action technology, which repairs bonds & removes calcium build-up for stronger hair inside and out**. Repairs persistent damage, reversing stiffness and dullness caused by calcium build up from your shower water. Leaves hair 99% stronger* & healthier with 75% more shine*** and 93% less breakage**** *Damage linked to frizz, dullness, roughness. Based on an instrumental and consumer test**System of Concentre, bain & fondant *vs. non conditioning shampoo***vs. unwashed hair**** vs. non conditioning shampooFragrance Description: This luxurious scent is comprised of mandarin and citrus top notes, silky and delicate floral middle notes, and finishes with rich woody bottom notes.Clinical Results: In a study vs. unwashed hair:- 75% more shineIn a study vs. non conditioning shampoo:- 93% less breakageIn a study where there was continuous use of the full system:- It reinforces weak hair bonds and reconnects broken links between keratin chains- Restore up to 99% of hair’s original strength
Design:
8.5 oz
International delivery
Shipping calculated at checkout
Returns & exchanges
Within 30 days of delivery
What it is: A strengthening pre-shampoo treatment that repairs bonds and removes calcium build-up, leaving hair 99 percent stronger and healthier feeling.Hair Texture: Straight and WavyHair Type: Fine, Medium, and ThickHair Concerns:- Damage, Split Ends, and Breakage- Dryness- ShineKey Benefits: - Removes calcium buildup for stronger hair inside and out- Repairs persistent damage, reversing stiffness and dullness for enhanced shine- Visibly reverses hair damageHighlighted Ingredients:- Citric Acid: This organic acid acts from surface to core to deeply repair bonds and remove calcium build up.- Glycine: This amino acid penetrates hair's inner layer, dramatically reduces breakage, and helps to neutralize dullness, and stiffness.What Else You Need to Know: Premiere repairing treatment visibly reverses hair damage* through innovative dual-action technology, which repairs bonds & removes calcium build-up for stronger hair inside and out**. Repairs persistent damage, reversing stiffness and dullness caused by calcium build up from your shower water. Leaves hair 99% stronger* & healthier with 75% more shine*** and 93% less breakage**** *Damage linked to frizz, dullness, roughness. Based on an instrumental and consumer test**System of Concentre, bain & fondant *vs. non conditioning shampoo***vs. unwashed hair**** vs. non conditioning shampooFragrance Description: This luxurious scent is comprised of mandarin and citrus top notes, silky and delicate floral middle notes, and finishes with rich woody bottom notes.Clinical Results: In a study vs. unwashed hair:- 75% more shineIn a study vs. non conditioning shampoo:- 93% less breakageIn a study where there was continuous use of the full system:- It reinforces weak hair bonds and reconnects broken links between keratin chains- Restore up to 99% of hair’s original strength
SKU
2-P509542
Brand
Kérastase
Category
beauty / hair-care / hair-masks-treatments
Variants
2
Customer reviews
5.0
verified purchase
Must-have to grow back damaged hair
I have always had long and fine processed blonde hair. I moved into an old house and the hard water damaged my hair to the point half the length broke off. I put a shower filter on (of course) but I also incorporated this product into my hair routine and it has worked wonders. My hair has been growing back at a faster rate and it is building strength. Can’t live without it
8/19/2026
5.0
verified purchase
Wow!
I almost didn't use the little sample size of this product. I was thinking it wouldn't do much. Wrong. I followed the directions exactly and I am impressed with the results: soft, shiny, lustrous hair! My hair feels so healthy! Now I will have to purchase the full size and use it regularly.
8/16/2026
4.0
verified purchase
Def a great repair treatment pre-shampoo
I really, really for one love the scent! It’s on the stronger side, so maybe skip it if you’re sensitive to that.
Otherwise, my biggest complaint is it on the “liquid-ier side” annnnd I feel like I use too much, but it never has a bad result lol.
I did notice healthier/shiner hair after using it a few times a week!
11/18/2025
5.0
verified purchase
I’m using it as part of my new hair routine and can’t stop using it anymore! I have damage fine hair and I’ve been more aware and trying to restore it so I bought all the Kerastase line and my hair is back to life!
9/27/2025
5.0
verified purchase
This is a GAME CHANGING PRODUCT!!!
My hair was so damaged from years of processing…and I dont plan on quitting anytime soon. I starting using this pre wash every time I wash my hair. First of all…it makes my hair so smooth and shiny! Second…over time my hair has improved its strength and no breakage! Thiss is an amazing product and worth every penny!!!
9/19/2025
3.0
verified purchase
Not that great
Not sure this product does anything. I use it with the corresponding shampoo and conditioner. I don’t really notice if I forget to use this.
6/27/2025
5.0
verified purchase
I always use it before washing my hair
I bought it two weeks ago and I literally love how my hair looks after using this pre-shampoo. I would buy it again!
5/19/2025
5.0
verified purchase
Love it
I’ve been using this product for a few days now and I’ve definitely noticed a difference. I have a blonde balayage and use tape-in extensions, and I’m always looking for products that help restore, strengthen, and make my hair softer and more hydrated. My hair tends to get oily, so super hydrating shampoos, conditioners, or leave-ins have never worked for me — they usually leave my hair feeling greasy yet still dry.
From the very first time I used this, applying it before washing, I felt the difference. I’ve never felt my hair this soft without it looking oily. It’s honestly a game changer.
4/18/2025
5.0
verified purchase
Works
I got this as a sample and there were no directions on it. Since it said pre shampoo treatment I just applied it to my hair and then used shampoo and conditioner as normal. Apparent to leave it on for 5 mins. Anyway, despite that my hair came out sooo smooth and silky and appeared less damaged. So it really does work. Price is high though.
4/5/2025
4.0
verified purchase
Worth the money!
For reference I have bleach and color treated hair. Very damaged and dry specifically the ends. This repairing treatment along with the other two products in this hair system works wonderfully! When you use all 3 in the order you should, it leaves your hair feeling so smooth and healthy after the first use. I wasn’t too enthused with the scent but it isn’t a bad scent, it just isn’t for me. Besides the scent everything else is great. Definitely worth the money if you care about your hair and want it back to healthy.
