Kérastase Genesis Bain Nutri-Fortifiant in the larger 500ml size is a nourishing strengthening shampoo for normal to dry hair prone to breakage. With Ginger Root, Edelweiss native cells and Aquaxyl, it fortifies the fibre from root to tip while adding moisture — the everyday Genesis cleanser, in a better-value size.

Benefits
  • Reduces breakage — fortifies each strand from root to tip.
  • Nourishes dry hair — adds moisture and softness without stripping.
  • Strengthens the fibre — for more resilient, fuller-feeling hair.
  • Better value — the larger 500ml size for households and frequent use.
How to use
  1. Apply to wet hair and massage into the scalp and lengths.
  2. Rinse, and repeat if needed.
  3. Follow with a Genesis conditioner, and use at every wash.
Who it's for

Best for weakened, breakage-prone hair that runs dry — ideal for regular users who want the value size. For fine or oily hair, choose Bain Hydra-Fortifiant. See the full Kérastase range.

Specifications

Brand
Kérastase
Size
500ml
Hair concerns
Hair Loss, Breakage, Weak Hair, Dry

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Why our stylists rate it
From the Partners Hair team
Kérastase Genesis Bain Nutri-Fortifiant 500ml is the larger size of the nourishing strengthening shampoo for normal to dry hair prone to falling due to breakage. Part of the Kérastase Genesis anti hair-fall range. A richer daily cleanser that fortifies while adding moisture.

Best for: normal to dry or thick hair that is weak and breaking; households or regular users wanting better value in a larger size.
Less suited to: fine or oily hair (use Bain Hydra-Fortifiant instead); hair loss originating from the scalp or follicle — Genesis targets breakage, not medical hair loss (see Kérastase Spécifique).

Key actives:
- Ginger Root — strengthens and energises hair, protects against external aggressors
- Edelweiss Native Cells — antioxidant action, fortify the fibre
- Aquaxyl — improves moisture retention for dry hair

Benefits:
- Reduces hair fall caused by breakage
- Part of the Genesis system shown to give 84% stronger hair (instrumental test vs non-conditioning shampoo)
- Strengthens fragile strands from root to tip
- Adds moisture and nourishment for dry or thick hair
- Improves manageability and detangling

How to use: Apply to wet hair, massage into scalp and lengths, rinse. Repeat if needed. Follow with Genesis Fondant Renforçateur conditioner. Use at every wash.

Format: 500ml shampoo (also available in 250ml).

Authorised Kérastase stockist — 100% authentic, sourced from the official South African distributor. Free delivery on orders over R390 across South Africa.
Delivery without the guesswork

Spend R390 and delivery is on us. Orders under R390 are delivered for R67. We normally pack within 1 working day, with delivery in 2–5 working days depending on your location.

Changed your mind? You have 7 days after receiving your order to request a return. Email hello@partnershair.co.za to get started.

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