Our collagen anti-aging serum contains vitamin E and probiotics. It can solve skin aging problems such as deep wrinkles, fine lines, puffiness and dark circles around the eyes, bags under the eyes, dark spots, melasma, pigmentation, rough texture, and loose skin. Its use method is very simple: 1. After cleaning and conditioning, 2. Take 2-3 drops of essence and evenly apply to the face. Massage gently with fingertips until absorbed (it is recommended to use once in the morning and evening for better results). And there is no loose skin, no wrinkles, no dark spots after use.