Moisturizing shampoo for blond hair. This hyaluronic acid-based formula gently cleanses and moisturizes hair from the root to the tips, making it light and gentle. Blonde hair shines new. Bain Lumière's formula, enriched with Edelweiss flowers, is highly concentrated in antioxidants that protect the hair fiber from daily external aggression. Application Apply shampoo to wet hair. Gently massage the scalp with your fingertips in circular movements during the first application. Rinse thoroughly. The second time, the shampoo releases a richer foam to clean the lengths and ends. Rinse thoroughly again.