Boots Collagen Youth Activating Serum is a deeply nourishing serum visibly reduces the appearance of lines and wrinkles for smooth and younger-looking skin. This lightweight and fast-absorbing serum helps to deeply nourish and revitalise skin. Formulated to visibly reduce the appearance of lines and wrinkles for smooth and younger-looking skin. How to use Apply serum to face and neck before applying Boots Collagen Moisturiser. For best results, use this serum with other Boots Collagen Youth Activating products Hazards and Cautions Do not store in direct sunlight.