Kerastase Symbiose, Symbiose Bain Creme Anti-Pelliculaire - 250 ml New & Sealed. Symbiose Moisturising Anti-Dandruff Cellular Shampoo by Kérastase is a silicone and sulphate-free moisturising anti-dandruff cellular shampoo for dry sensitive scalp, prone to dandruff, formulated with Salicylic Acid for a breathable scalp and piroctone olamine that acts on all the causes of dandruff helping to reduce yeast proliferation and slow down cellular renewal speed.