KÉRASTASE Strengthening Conditioner for Weak or Damaged Hair — Genesis Fondant Renforcateur, 2.5 fl oz, Detangles & Hydrates

This compact KÉRASTASE Genesis Fondant Renforcateur delivers targeted support for hair that's been weakened by heat, brushing, or everyday styling. It combines plant-derived edelweiss native cells and ginger root extract to help reinforce fiber resilience, boost shine, and make wet combing easier. The creamy, fast-working formula rinses clean and is designed for normal to dry hair that needs reinforcement rather than heavy conditioning.

How does this conditioner reduce breakage during brushing?

The formula works at the fiber level to temporarily strengthen and smooth hair, making strands less likely to snap under tension. By improving slip and reinforcing fragile areas, it reduces mechanical stress from combing and styling.

• Contains edelweiss native cells to help fortify weakened fiber structure.
• Ginger root extract targets weak points to improve resilience.
• Light, detangling texture lowers friction during wet combing.

Will it hydrate hair without leaving it heavy or greasy?

Yes — the fondant texture is formulated to deliver moisture and body while keeping hair balanced. It nourishes dry lengths and adds shine without the weight of richer masks, making it suitable for normal to dry hair types that need support rather than intense oiling.

• Light conditioning base hydrates mid-lengths and ends.
• Non-greasy finish preserves volume and movement.
• Rinses clean to avoid buildup with regular use.

How should I use it for best results in my routine?

Apply after shampooing to towel-dried hair, working the fondant through lengths and ends. Leave on for 2–3 minutes so active ingredients can penetrate the fiber, then rinse thoroughly. For optimal strengthening and fall-reduction, use alongside the Genesis shampoo and serum from the same range.

• Use on clean, towel-dried hair for efficient absorption.
• Leave in 2–3 minutes before rinsing for measurable softness.
• Combine with Genesis shampoo and serum to address breakage-prone hair fully.

Is this safe for color-treated or heat-styled hair?

The lightweight conditioning action is compatible with colored and heat-styled hair because it focuses on strengthening and detangling rather than depositing heavy oils or silicones. It helps hair cope with thermal styling by reinforcing weakened areas, though it should be used as part of a broader heat-protection routine when applying hot tools.

• Formulated to strengthen hair compromised by heat and styling.
• Does not overload colored hair — keeps shine and bounce intact.
• Pair with your preferred heat protectant before styling with tools.

Who is this for? The KÉRASTASE Genesis Strengthening Fondant Renforcateur is aimed at people with normal to dry hair that is fragile or prone to breakage from brushing, heat, or everyday handling. If your hair needs improved slip for detangling, a strengthening boost without heaviness, and a boost of manageability and shine, this conditioner fits well into a preventive, daily care routine.

Ingredients

AQUA / WATER / EAU • CETEARYL ALCOHOL • STEARAMIDOPROPYL DIMETHYLAMINE • ISOPROPYL MYRISTATE • GLYCERIN • GLYCINE SOJA OIL / SOYBEAN OIL • HELIANTHUS ANNUUS SEED OIL / SUNFLOWER SEED OIL • COCO-CAPRYLATE/CAPRATE • CETYL ESTERS • TARTARIC ACID • CAPRYLYL GLYCOL • SALICYLIC ACID • LIMONENE • HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE • LINALOOL • BENZYL SALICYLATE • COUMARIN • ZINGIBER OFFICINALE ROOT EXTRACT / GINGER ROOT EXTRACT • CITRAL • BENZYL ALCOHOL • CITRONELLOL • XYLITYLGLUCOSIDE • ANHYDROXYLITOL • LEONTOPODIUM ALPINUM CALLUS CULTURE EXTRACT • XYLITOL • CITRIC ACID • XANTHAN GUM • DIPEPTIDE DIAMINOBUTYROYL BENZYLAMIDE DIACETATE • PARFUM / FRAGRANCE