Our C10 Facial treatment essence contains vitamin C, hyaluronic acid, salicylic acid. It strengthens the skin barrier against external aggression. Reduce blemishes and even out skin tone. How to use it is simple: 1. Clean your face and keep it dry. 2. Apply appropriate amount of this product evenly on face and neck, gently massage in circular motion to promote absorption. Penetrate deep into the skin, effectively eliminate dullness and awaken the inner radiance of the skin.