Gianluca Mech Vitamin A Booster Serum is a vitamin A serum that promotes healthy, radiant skin. This concentrated vitamin A formula helps reduce signs of aging, such as wrinkles and age spots. Each syringe delivers a powerful dose of vitamin A for visible results. Composition - Vitamin A (retinol) - Excipients q.s. 1 syringe. Instructions for use Apply a syringe to clean skin every 2-3 days.