Shampoo · Kerastase

Kérastase Specifique Bain Divalent Shampoo 250ml

£30.50 at Boots
4.4 / 5
★★★★★★★★★★
736 reviews across 1 retailer
87% rate it 4 or 5 stars
5★
542
4★
96
3★
25
2★
19
1★
54
Boots4.43★★★★★★★★★★736 reviews (713 with text)

Summary. Reviewers are mostly positive: 87% give it 4 or 5 stars and 10% give it 1 or 2.

+Positives

  • Clean feel. Leaves hair and scalp feeling properly clean. 101 reviews
  • Scent. Reviewers often single out how it smells. 66 reviews
  • Softness. Hair is described as softer and smoother afterwards. 40 reviews
  • Shine. Many notice extra shine. 24 reviews
  • Calmer scalp. Itchy or sensitive scalps feel soothed. 20 reviews

−Negatives

  • Residue. Some say it leaves hair greasy, heavy or coated. 42 reviews
  • Can be drying. Some find it leaves hair dry, rough or stripped. 23 reviews
  • Scalp irritation. A minority report itching, burning or redness. 10 reviews
  • Little effect. Some saw no real difference from what they used before. 8 reviews
Last 12 months: 4.7 from 203 reviews, above the all-time score.
Product-specific reviews only: 2 reviews that also appear on other products were left out, so every review here is about this product.

Reviews from 16 Apr 2017 to 20 Aug 2026. 23 are star ratings without text.