The Bio Retinoid Youth Serum minimises fine lines and wrinkles in as little as seven days. Ideal for sensitive skin, this serum mimics the effects of retinol, helping to improve skin firmness, tone, and correct pigmentation issues. The skins elasticity is restored allowing for a smoother finish.Suitable for vegans and cruelty-free.To use: Apply morning and evening to the cleansed face, neck, and dcollet. Massage until absorbed.