Specification: Item Type: Peptide Complex Serum Texture: Liquid Efficacy: Stimulate collagen production, smooth and correct fine lines and wrinkles. Shelf Life: 3 Years Package List: 1 x Serum Note: Choose the inside of your elbow or the back of your ear, and then apply a little product on it and leave it for about 20 minutes to see if there is any discomfort such as redness, swelling and itching. If there is an allergic reaction, then this product cannot be used, if not, it is can use.