KLMC-20 Vitamin C Serum is a high-strength 20% vitamin C face serum powered by stable 3-O-ethyl ascorbic acid for intense brightening and anti-ageing benefits. This fast-absorbing antioxidant formula helps fade dark spots, acne marks and sun damage while boosting collagen to smooth fine lines and wrinkles. Enriched with sodium hyaluronate and allantoin, it hydrates, soothes and improves skin barrier function for plump, glowing skin. Ideal for dull, uneven, pigmented skin, this lightweight daily vitamin C serum leaves the complexion clearer, firmer and more radiant.