Search  for anything...
Kerastase

Kerastase Genesis Nutri-Fortifiant Shampoo – For Weak Hair

  • Based on 6,907 reviews
Condition: New
Checking for the best price...
$48.00 Why this price?

Buy Now, Pay Later

As low as $8.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Sunday, Oct 11
Order within 23 hours and 37 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: 8.5 Fl Oz (Pack of 1)


Features

  • Anti hair-fall fortifying shampoo for dry weakened hair, prone to falling due to breakage
  • Gently clarifies and reinforces fiber to reduce the risk of hair-fall due to breakage

Description

Our hair care collection that treats hair fall due to hair breakage from brushing. The Genesis collection is a dual action fortifying system professionally formulated to strengthen hair and reduce hair breakage. Expert Formulas Fusio-Dose Instant Transformation, Infinite Possibilities. In-Salon Service Make an appointment in your Kérastase salon for a personalized hair diagnosis. Who is the Genesis Nutri-Fortifiant Shampoo for? It is designed for normal to dry hair that is weakened and prone to falling due to breakage from brushing. How does this shampoo help with hair fall? It gently cleanses and clarifies the scalp while nourishing and strengthening the hair fiber to significantly reduce breakage. What are the key ingredients in this shampoo? It is formulated with a powerful blend of Edelweiss Native Cells and Ginger Root to fortify and protect the hair. Will this shampoo hydrate my dry hair? Yes, it provides intense nourishment and hydration, leaving your hair feeling soft, detangled, and healthy. How often should I use this strengthening shampoo? It is gentle enough for daily use. Apply to wet hair, massage into a rich lather, and rinse thoroughly. Renforcateur Conditioner Nutri-Fortifiant Shampoo Hydra-Fortifiant Shampoo Reconstituant Hair Mask Defense Thermique Serum Fortifiant Serum PROFESSIONAL HAIRDRESSERS: Kérastase is a leading global luxury professional haircare brand. Born in Paris in 1964, the brand has built its reputation on delivering exceptional performance on scalp and hair through exquisite products and personalized, in-salon treatments, all powered by scientific expertise. Kérastase adopts a care-first philosophy to care for all hair types and all individuals, as well as the world we live in.

Product Dimensions ‏ : ‎ 43.54 x 30 x 5.98 inches; 8.47 ounces


Item model number ‏ : ‎ E3245500


Manufacturer ‏ : ‎ Kerastase


Best Sellers Rank: #4,310 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #133 in Hair Shampoo


#133 in Hair Shampoo:


Customer Reviews: 4.6 4.6 out of 5 stars (6,907)


Item Form: Gel


Hair Type: All


Scent Name: Floral


Other Special Features of the Product: Scented


Product Benefits: Gently cleanses and purifies the scalp from the root clarifying impurities that cause weakened hair. Formulated with ginger root for added strength. Suggested for daily use.


Suitable Hair Color: All Hair Colors


Brand Name: KÉRASTASE


Age Range Description: All


Global Trade Identification Number: 13


Item Highlight: Gently cleanses and clarifies scalp, nourishes, reduces breakage, hydrates, dry hair


Collection Name: Genesis


Manufacturer: Kerastase


Model Number: E3245500


Manufacturer Part Number: E3245500


Liquid Volume: 250 ml


Number of Items: 1


Item Weight: 240 g


Item Dimensions: 43.54 x 30 x 5.98 inches


Unit Count: 8.5 Fluid Ounces


Material Type Free: Sulfate Free


Active Ingredients: Salicylic Acid, salicylic_acid


Recommended Uses For Product: Apply to wet hair. Lather, rinse and repeat. Follow with Fondant Renforcateur Conditioner for best results.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 11

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Holy grail for dry / weak hair
Size: 8.5 Fl Oz (Pack of 1)
5th time buying! Best shampoo I've tried for dry, weak hair prone to breakage. Cleans scalp well without stripping, leaves hair soft, hydrated and much less breakage. Smells luxurious. Expensive but lasts and works. Will keep repurchasing!
Reviewed in the United States on September 8, 2026 by Mariela Lopez
    • makes my hair so soft
Size: 8.5 Fl Oz (Pack of 1)
Love how this shampoo makes my hair so soft, and the fragrance is amazing! The scent lasts for a couple of days, which I really love. It leaves my hair feeling clean, soft, and smelling wonderful. Definitely a favorite!
Reviewed in the United States on August 27, 2026 by Flavi
    • LOVE this product!
Size: 8.5 Fl Oz (Pack of 1)
Stronger, Softer Hair Starts Here – A True Salon Experience at Home! I’ve been using Kérastase Genesis Shampoo for a few weeks now, and I can confidently say—it’s a game-changer. My hair has never felt this strong, soft, and healthy, especially considering how much it’s been through with heat styling and seasonal shedding. From the first wash, I noticed a difference. The texture is luxuriously creamy, and a little goes a long way. It lathers beautifully and rinses clean without leaving any residue. The scent is subtle yet elegant—like something you’d expect in a high-end salon—and it lingers just enough to make your hair feel freshly washed all day. What really sets this shampoo apart is how it targets hair fall due to breakage. After consistent use, I’ve seen noticeably less hair in the drain and on my brush. My strands feel stronger, smoother, and more resilient. It’s also gentle on the scalp, leaving it feeling clean and balanced without any dryness or irritation. ✅ Strengthens and reduces breakage ✅ Leaves hair soft, shiny, and manageable ✅ Beautiful, salon-quality scent ✅ Worth the investment for healthier hair If you’re dealing with hair fall or just want to give your hair a little extra love, this shampoo is absolutely worth it. Pair it with the Genesis conditioner or serum for even better results. I’m officially hooked! ... show more
Reviewed in the United States on June 2, 2025 by Dana C
    • A very good purchase!!!
Size: 8.5 Fl Oz (Pack of 1)
This shampoo is great, it leaves a softness in the hair, smells too rich and above all stops the fall in the first wash, super recommended
Reviewed in the United States on July 28, 2026 by Susana Martinez
    • Excellent Clarifier for Fine-Thick Hair That Falls Flat
Size: 8.5 Fl Oz (Pack of 1)
Quick Summary I have fine but thick hair—lots of hair, but it tends to lie flat and get weighed down easily. This shampoo is excellent for resetting buildup and making hair feel lighter, but it won’t magically create volume on its own. It’s best used as an occasional reset, not a volume shampoo. Why I Bought It My hair isn’t thin, but it lacks lift at the roots due to product buildup, oils, and hard water. I wanted something strong enough to truly clean my scalp without permanently drying my hair out. How It Performs on Fine-Thick Hair ✔️ Removes buildup in one wash ✔️ Hair feels lighter and cleaner afterward ✔️ Helps hair stop clumping together ✔️ Improves movement and softness After using this, my hair feels freer and less weighed down, which indirectly helps volume—but it’s more of a clean slate than a volumizer. Important to Know • This is a true clarifying shampoo, not a volumizing one • Apply in sections to save hair & product • Overuse can make fine strands feel dry • Best used once every 1–2 weeks • Always follow with conditioner (mid-lengths to ends only) For fine-thick hair, spacing out use is key to keeping body without stripping moisture. Scent & Texture • Fresh, clean apple cider scent • Thick gel texture • Lathers well — you don’t need much Who This Is Great For ✔️ Fine hair that gets weighed down ✔️ Thick hair that lacks volume ✔️ Dry shampoo or styling product users ✔️ Anyone needing a scalp + buildup reset Who Should Skip or Use Carefully ⚠️ Very dry or damaged hair ⚠️ Anyone looking for instant volume without styling Bottom Line This shampoo won’t add volume—but for fine, thick hair that falls flat, it removes what’s holding volume back. Used occasionally, it makes hair feel lighter, cleaner, and more responsive to styling. Disclaimer: Not a stylist—just sharing my experience with fine-thick hair to help others use this the right way. ... show more
Reviewed in the United States on May 25, 2026 by Three
    • Softest curls
Size: 8.5 Fl Oz (Pack of 1)
Always leaves my hair softer then I thought possible. I always get the hair mask and conditioner that jives with the shampoo choice. Top of the line product would recommend to all my friends
Reviewed in the United States on September 6, 2026 by Julieanne D Wroblewski
    • Works well for my hair
Size: 16.9 Fl Oz (Pack of 1)
I’ve been happy with this shampoo so far. It cleans my hair well without making it feel dry. My hair feels softer and stronger after using it, and I like the scent. A bit expensive, but the quality is very good.
Reviewed in the United States on June 16, 2026 by Shirong,Lin
    • Amazing
Size: 8.5 Fl Oz (Pack of 1)
Great shampoo! It smells amazing and leaves my hair feeling clean and fresh.
Reviewed in the United States on July 25, 2026 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...