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

Price: $50.00
(as of Jun 04, 2026 10:12:36 UTC – Details)
Buy On Amazon

Product description

Fortify Hair Prone To Falling

Genesis

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

Powered by Edelweiss Native Cells and Ginger Root

Edelweiss Native Cells & Ginger Root: Detangle, moisturize, and increase strength and softness.

Fusio-Dose

Professional In-Salon Treatment

Instant Transformation, Infinite Possibilities.

In-Salon Service

Your appointment

Make an appointment in your Kérastase salon for a personalized hair diagnosis.

1 Ingredients

2 Fusio-Dose

3 Diagnosis

Discover Genesis
Nutri-Fortifiant Shampoo

Gently Cleanses Scalp and HairIntensely Moisturizes and Easily DetanglesStrengthens Hair Weakened by Heat Damage and Brushing

Hydra-Fortifiant Shampoo

Gently Cleanses Scalp and Hair to Remove Excess BuildupStrengthens Hair Weakened by Heat Damage and BrushingNourishes and Easily Detangles Hair

Renforcateur Conditioner

Intensely Moisturizes and Adds BodyStrengthens Hair Weakened by Heat Damage and BrushingEasily Detangles and Prevents Split Ends

Reconstituant Hair Mask

Intensely Nourishes and Hydrates HairStrengthens Hair Weakened by Heat Damage and BrushingSmooths and Easily Detangles

Defense Thermique Hair Serum

Protects Against Heat StylingDelivers Up to 24 Hours of Frizz ProtectionStrengthens Hair Weakened from Brushing and Over-Styling

Fortifiant Hair Serum

Strengthens Hair Weakened by Heat and BrushingHydrates Hair and Adds ShineHas a Lightweight, Non-Greasy Finish

Who should use the Genesis Fondant Renforcateur?

It is ideal for those with normal to dry, weakened hair looking to reduce hair fall caused by breakage.

How does this conditioner strengthen hair?

It fortifies the hair fiber’s natural resistance to reduce the risk of hair fall while providing essential hydration.

Will this conditioner weigh my hair down?

No, it is a lightweight formula that deeply nourishes and detangles without leaving a heavy residue.

What are the main ingredients in this conditioner?

It features a strengthening blend of Edelweiss Native Cells and Ginger Root to protect and soften the hair.

How do I use this strengthening conditioner?

After shampooing, apply a quarter-sized amount to towel-dried hair. Leave on for 2 to 3 minutes, then rinse thoroughly.

Explore the Genesis Collection

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Customer Reviews

4.6 out of 5 stars 1,919

4.6 out of 5 stars 6,519

4.6 out of 5 stars 2,795

4.7 out of 5 stars 847

4.6 out of 5 stars 5,412

4.5 out of 5 stars 2,196

Price

$50.00$50.00

$46.00$46.00

$46.00$46.00

$68.00$68.00

$50.00$50.00

$64.00$64.00

Hair Type

Hair prone to breakage & fall

Normal to dry, weak hair

Normal to oily, weak hair

Hair prone to breakage & fall

Hair prone to breakage & fall

Hair prone to breakage & fall

Purpose

Light, fortifying conditioner

Fortifying shampoo

Delicate fortifying shampoo

Intense fortifying hair mask

Fortifying heat protectant

Daily fortifying serum

Benefit

Immediate strength & softness

Intensely nourish & detangle

Gentles cleanse & strengthen

Smooth, detangle, & strengthen

Adds shine & prevents frizz

Strengthen hair & reduce fall

Key Ingredient

Ginger root

Ginger root

Ginger root

Ginger root

Ginger root

Ginger root

Usage

Can be used daily

Can be used daily

Can be used daily

Use once a week

Use when blow drying & styling

Can be used daily

Product Dimensions ‏ : ‎ 1.97 x 2.96 x 7.48 inches; 6.8 ounces
UPC ‏ : ‎ 884486448064
Manufacturer ‏ : ‎ KERASTASE
ASIN ‏ : ‎ B086T6KRBV
Best Sellers Rank: #4,764 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #99 in Hair Conditioner
Customer Reviews: 4.6 4.6 out of 5 stars (1,919) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Renforcateur Conditioner: This lightweight conditioner provides immediate strength and softness. It strengthens hair weakened by heat damage and brushing using anti-breakage action and fiber fortication. Provides moisture and shine. Detangles and adds volume
Benefits: Formulated with edelweiss native cells and ginger root for added strength. Provides immediate strength and softness without weighing down the hair.
Additional Benefits: Intensely Moisturizes and Adds Body – Strengthens Hair Weakened by Heat Damage and Brushing – Easily Detangles and Prevents Split Ends.
Suggested Use: Apply to shampooed towel-dried hair. Leave on for 2 to 3 minutes. Rinse thoroughly.
Genesis Collection: Ideal for normal to dry weakened hair that is prone to falling due to breakage from brushing. For best results use shampoo conditioner and hair serum as part of your everyday routine