Describe Colors:purple Size:3*3*15cm net weight:30ml Shelf life:3 years Product functions and features include: 1.Retinol serum contains retinol (a derivative of vitamin A), which has antioxidant and cell renewal effects, helping to reduce fine lines, wrinkles and other signs of skin aging. 2.Retinol essence can help fade spots and dark spots, even out skin tone, skin tone. 3.Repair skin: Retinol has the function of repairing the skin barrier, which can help repair damaged skin and reduce inflammation. 4.Firming skin: Retinol essence can promote the synthesis of collagen, enhance skin elasticity, and make the skin firmer and more elastic. 5.Improve acne: Retinol essence has antibacterial effects, which can help improve acne problems and reduce the occurrence of acne. Instructions: Use during your evening skincare routine, as retinol is photosensitive and daytime use may increase sensitivity to UV rays. Cleanse your skin first, then condition it with toner. Apply an appropriate amount of retinol essence to facial skin, avoiding the eye area. Massage gently until fully absorbed. Use gentle massage techniques to promote absorption. If necessary, you can apply lotion or cream after the retinol essence to lock in moisture. Keep skin well hydrated during use.