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

Price: $50.00
(as of Mar 17, 2026 03:45:36 UTC – Details)

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

What are the benefits of Fondant Renforcateur Conditioner? How should I use it?

Fondant Renforcateur reinforces hair fiber natural resistance to reduce the risk of hair fall due to breakage from brushing. It provides immediate strength and softness. Apply to shampooed hair, leave on for 2-3 minutes, and rinse thoroughly.

Should I use Fondant Renforcateur Conditioner or Masque Renforcateur Hair Mask?

Use Fondant Renforcateur Conditioner daily for lightweight, intense moisture and strength. When your hair needs deep nourishment, use the Masque Renforcateur Hair Mask’s rich formula in place of a conditioner weekly or as often as needed.

Can Fondant Renforcateur Conditioner be applied on the scalp?

Fondant Renforcateur Conditioner is meant to take care of lengths and ends. It provides hair with intense moisture and reinforcement to fight against hair fall due to repeated processing like brushing. We do not recommend applying on the scalp.

What is the difference between hair-fall and hair-loss?

Hair-loss is defined by > 100 strands falling from the roots per day due to the hardening of collagen hair shaft. Hair-fall is defined by > 100 strands per day falling from the roots due to biological reasons (stress, hormones, diet) OR from breakage

Explore the Genesis Collection

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Customer Reviews

4.6 out of 5 stars 1,783

4.6 out of 5 stars 6,121

4.6 out of 5 stars 2,532

4.7 out of 5 stars 787

4.6 out of 5 stars 5,125

4.4 out of 5 stars 1,766

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: #4,860 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #106 in Hair Conditioner
Customer Reviews: 4.6 4.6 out of 5 stars (1,783) 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