Glow Hylunaric acid serum is specially formulated to target dryness, dullness, uneven skin tone, wrinkles, and fine lines. The level of acido hialuronico in the skin correlates with the level of collagen, a vital protein that supports the skin's youthfulness and radiance. This hyaluronic acid moisturizer for face is enriched with high-quality Hyaluronic Acid, also known as "ácido hialurónico," which helps improve the appearance of skin elasticity, firmness, and suppleness. With regular use of hyaluronic acid, it can make lines and wrinkles less pronounced and hydrate even the thirstiest of skins. For best results, incorporate this hialurónico acid serum into your day and night skincare routine. After washing your face with cleanser, and using a facial toner, apply the serum to your face. For optimal results, layer with Retinol suero para la cara at night and a Vitamin C serum during the day, and don't forget to apply hyaluronic acid cream as well. This is not like other korean hyaluronic acid serums, this serum is made in USA. Can be used in combination with hyaluronic acid body lotion or hyaluronic acid body wash.