Product Overview Care for & treat dry hair with Kérastase's Biotic Bain Bio-Recharge Hydrating Shampoo. Reactivates the scalp's natural defences for long lasting healthy hair. Benefits This nourishing formula gently cleanses the hair & treats the lengths without weighing it down. Developed by Kérastase’s experts, the shampoo refreshes & instantly soothes itching & discomfort. Key Technology This exclusive formula rebalances & reactivates the scalp’s micro flora with Bioflorine 2.5%. Tween effectively cleanses, giving maximum comfort to the scalp whilst Glycerol soothes for fresh, clean feeling.