Brand from Japan: Rohto Mentholatum. The newly upgraded highest concentration 25% pure vitamin C serum can quickly improve various skin problems.Quickly lightens spots, reduces wrinkles, tightens skin, locks in moisture, improves roughness, evenly brightens skin, highly effective antioxidant, balances oil.3.7 times the penetration power, injecting the powerful antioxidant and anti-aging power of pure vitamin C into the dermal layer.Promote collagen proliferation, repair the skin in the most comprehensive way, and maintain the youthful look.How to use:Use in the morning and evening after cleansing and lotion.Squeeze 3-4 drops of serum into the palm of your hand.Apply lightly on face and neck, especially dull and dry areas.