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Kerastase Genesis Strengthening Fondant Renforcateur Conditioner - For Weak or Damaged Hair, Detangles & Hydrates, For Normal to Dry Hair

  • Based on 1,356 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Sep 7
Order within 21 hours and 45 minutes
Available payment plans shown during checkout

Size: 6.8 Fl Oz (Pack of 1)


Brand: KÉRASTASE


Item Form: Liquid


Material Feature: Sulfate Free


Hair Type: Normal


Product Benefits: Strengthens hair weakened by heat damage and brushing. Addresses oily hair and scalp by helping to prevent oil build up on the scalp. Prevents risk of hair-fall due to breakage from brushing See more


Product Dimensions ‏ : ‎ 1.97 x 2.96 x 7.48 inches; 6.8 ounces


UPC ‏ :


Manufacturer ‏ : ‎ KERASTASE


Country of Origin ‏ : ‎ Spain


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • My hair has never been better!
Size: 6.8 Fl Oz (Pack of 1)
trength + Softness = Hair Goals This conditioner is a lifesaver for anyone dealing with hair fall from breakage. It leaves my hair feeling silky, nourished, and noticeably stronger after just a few uses. It detangles effortlessly and doesn’t weigh my hair down—just smooth, healthy strands with a light, luxurious scent. If your hair needs a boost in strength and softness, this is absolutely worth it! ... show more
Reviewed in the United States on June 2, 2025 by Dana C

  • Kerastase Genesis Really works!!
Size: 6.8 Fl Oz (Pack of 1)
✨ I 100% recommend the Kérastase Genesis line. My hair was weak and prone to breakage, but since I started using the shampoo, conditioner, and serum, it feels stronger, softer, and more alive. It’s been working great for me and I’ll definitely keep using it! 💗💆♀️ #KerastaseGenesis #HairCare #HighlyRecommended ... show more
Reviewed in the United States on June 9, 2025 by J C J C

  • Great conditioner for blonde, fine hair!
Size: 6.8 Fl Oz (Pack of 1)
Made my hair so soft without weighing it down. It smells good, and leaves no build up type feeling behind. Love this conditioner!
Reviewed in the United States on June 3, 2025 by Michael Kronander

  • Best for damaged hair.
Size: 2.5 Fl Oz (Pack of 1)
I bought this product because of TikTok. They were right. Makes my hair healthy with volume. Makes it soft and gives a berry scent to it.
Reviewed in the United States on May 29, 2025 by d.casa02

  • Great Product
Size: 6.8 Fl Oz (Pack of 1)
The only reason for giving this product 4 stars instead of 5 is price! It is half the price at Walmart. I love this product.
Reviewed in the United States on June 3, 2025 by PatriotSC

  • Great for fine hair
Size: 6.8 Fl Oz (Pack of 1)
My hair never felt so soft! This is the real deal. I have pretty fine hair but after using it for a month, my hair definitely feels healthier and lighter
Reviewed in the United States on May 26, 2025 by D Jansen

  • The best
Size: 6.8 Fl Oz (Pack of 1)
I can't live without it
Reviewed in the United States on June 10, 2025 by Karine

  • SOFT HAIR!!!!
Size: 2.5 Fl Oz (Pack of 1)
I would not buy any other! Moisture is AMAZING!
Reviewed in the United States on June 6, 2025 by Michelle

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