Thanks to its unique formula enriched with vegetable Argan oil and Biotin (better known as vitamin B8), our shampoo strengthens and provides deep and targeted care to damaged and fragile hair. Biotin plays an important role in the constitution of keratin proteins and contributes to the maintenance of hydration and the good health of your hair. Our conditioner enriched with Biotin and amino acids is recommended for the care of fragile hair, or during hair loss, loss of density, brittle or thinning lengths. Biotin is an essential nutrient for our body that helps strengthen hair fibers, stimulate regrowth and naturally thicken hair. Your hair is stronger, softer and shinier. How to use: After shampoo, apply to wet hair, focusing on the ends. Leave on for 2 to 3 min. Rinse thoroughly.