A light conditioner for weakened hair that sheds through breakage
Kérastase Genesis Fondant Renforçateur is a fortifying anti hair-fall conditioner for weakened hair that tends to fall because it breaks. It nourishes and detangles the lengths without weighing them down, so hair feels stronger and softer straight after rinsing and is less likely to snap when you comb or brush it. The formula is built around three ingredients named by Kérastase: edelweiss native cells, an antioxidant plant extract, ginger root extract, which helps protect the hair from daily aggressors, and Aquaxyl, a hydrating complex.
The texture
A soft, creamy conditioner that melts into damp hair and rinses out easily. It detangles well but stays light, so fine hair keeps its movement and does not go flat at the roots.
Who it suits
- Fine to normal hair that sheds more than usual through breakage
- Hair weakened by colouring, heat styling or brushing
- Anyone already using the Genesis shampoo who wants the full routine
- Hair that tangles easily and snaps when combed
Worth knowing before you buy: it works on the lengths and on fall due to breakage, not at the scalp, and it contains fragrance. For fall from the roots, pair it with the Genesis serum below.
How long one tube lasts
Using a hazelnut-sized amount two or three times a week, the 200ml tube lasts around three months on shoulder-length hair.
Complete the routine

Genesis Bain Hydra-Fortifiant
The matching shampoo for oily roots and weakened lengths.
Shop →
Genesis Fortifying Serum
A leave-in scalp serum for hair fall from the roots.
Shop →Characteristics
- Texture: cream
- Hair type: fine to normal, weakened hair prone to fall due to breakage
- Hair concerns: hair fall due to breakage, weakened hair, tangles
- When to apply: after shampoo
- Age: 18+
- Main benefits: reduces hair fall due to breakage, strengthens and nourishes the fibre, detangles, adds shine and softness without weighing hair down
How to use
After shampooing, gently towel-dry the hair. Apply a hazelnut-sized amount through the mid-lengths and ends, avoiding the roots, and comb through. Leave on for 2 to 3 minutes, emulsify with a little water, then rinse thoroughly.
Active ingredients
- Edelweiss native cells (Leontopodium alpinum callus culture extract): antioxidant plant cells that help protect the hair
- Ginger root extract: helps protect the hair from daily external aggressors
- Aquaxyl (xylitylglucoside, anhydroxylitol, xylitol): helps keep hair and scalp hydrated
- Soybean and sunflower seed oils: nourish and soften the lengths
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
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: L'Oréal
Address: 14 rue Royale, 75008 Paris, France
EAN: 3474636857883
