What is Kerastase - Shampoo - Dermo-calm bain riche. A hypoallergenic shampoo that calms, nourishes and improves hair quality. It is perfect for sensitive and / or dry scalp. It does not contain silicones, it cleanses and soothes irritated scalp as well as providing softness and hydration. How to use Kerastase - Shampoo - Dermo-calm bain riche. Apply to the scalp and emulsify. Rinse with plenty of water. Kerastase - Shampoo - Dermo-calm bain riche is indicated for: Dry hair and sensitive or irritable scalp.