Genesis Shampoo Hydra-Fortifiant 500ml Refill

Give your hair its strongest defense with the Kérastase Genesis Bain Hydra-Fortifiant Refill — a 500 ml salon-grade refill pouch that lets you restock your existing bottle sustainably, with up to 82 % less plastic waste than traditional packaging (vs. two standard 250 ml bottles).

Formulated for fine to normal hair with an oily scalp that’s prone to breakage, this ultra-gentle shampoo fortifies your strands while maintaining lightness. It gently clarifies scalp buildup and excess sebum without over-stripping moisture, leaving hair clean, soft, and resilient.

The Genesis line is clinically shown to reduce hair fall caused by breakage (when used as a full regimen), reinforcing both fiber strength and scalp health

Key Ingredients & Their Role

• Edelweiss Native Cells — A powerful antioxidant that supports fiber elasticity and protects hair from environmental stressors.

• Ginger Root Extract — Helps to invigorate the scalp, supports defense against daily aggressors, and calms the scalp environment. 

• Caffeine — Included in the formulation to stimulate microcirculation at the scalp, promoting a healthier scalp environment. 

• Arginine (amino acid) — Has a strong affinity for hair fiber and supports weakened hair strands. 

• Aquaxyl / Moisturizing Complexes — Provide hydration and help balance the scalp’s moisture levels (referenced in product listing)

The blend is silicone-free and designed to provide oil control, gentle cleansing, and reinforcement of the hair fiber. 

Major Benefits

• Reduced hair fall from breakage — Designed to strengthen hair strands so they are less prone to snapping or breaking during brushing.

• Light, clarified feel — Removes buildup and excess oil from the scalp without weighing hair down. 

• Improved manageability — Leaves hair easier to detangle, softer, and more responsive to styling. 

• Sustainable refill format — Delivers environmental and cost advantages by reducing packaging waste and overall cost per milliliter. 

How to Use / Application

1. Wet your hair thoroughly.

2. Take a quarter-sized amount and apply touch-by-touch across five key zones (temples, crown, nape, etc.). Add a little water to emulsify, massaging the scalp gently to clear buildup.

3. Rinse thoroughly.

4. Repeat with another quarter-sized dose: this time lather more fully to cleanse the lengths and ends, then rinse well.

5. Follow with the matching Fondant Renforçateur conditioner and Sérum Fortifiant treatments from the Genesis line for optimal results.

Pro tip: A little goes a long way — the formula is concentrated, so you don’t need to use much to get rich lathering and effective cleansing.