Shampoo · Kerastase

Kérastase Genesis, Nourishing & Fortifying Shampoo, For Weakened hair, With Ginger Root, Bain Nutri-Fortifiant, 250ml

£30.50 at Boots
4.7 / 5
★★★★★★★★★★
981 reviews across 1 retailer
93% rate it 4 or 5 stars
5★
779
4★
136
3★
37
2★
18
1★
11
Boots4.69★★★★★★★★★★981 reviews (965 with text)

Summary. Reviewers are very positive: 93% give it 4 or 5 stars.

+Positives

  • Scent. Reviewers often single out how it smells. 123 reviews
  • Softness. Hair is described as softer and smoother afterwards. 93 reviews
  • Repair. Damaged or breaking hair seems stronger. 52 reviews
  • Moisture. Dry hair feels more hydrated and nourished. 48 reviews
  • Clean feel. Leaves hair and scalp feeling properly clean. 46 reviews

−Negatives

  • Can be drying. Some find it leaves hair dry, rough or stripped. 11 reviews
  • Residue. Some say it leaves hair greasy, heavy or coated. 5 reviews
Last 12 months: 4.8 from 289 reviews, above the all-time score.
Product-specific reviews only: 3 reviews that also appear on other products were left out, so every review here is about this product.

Reviews from 26 Jan 2020 to 20 Aug 2026. 16 are star ratings without text.