Shop › Hydrate Shampoo Hydrate Shampoo £0.00 sold out Rich-lather hydrating shampoo for dry, colour-treated hair. How to use: Apply to wet hair, lather and rinse. Follow with Hydrate Conditioner. Sold Out Added! Rich-lather hydrating shampoo for dry, colour-treated hair. How to use: Apply to wet hair, lather and rinse. Follow with Hydrate Conditioner.