Our strong nail care liquid is made of glycerin, keratin and tocopherol (vitamin E). Designed specifically to protect nails from environmental damage and delay aging. The usage method is extremely convenient: 1. Clean and dry the nails and the surrounding skin; 2. Take an appropriate amount of nail polish and apply it evenly on your nails. 3. Gently massage until fully absorbed. And it can form an invisible protective layer, effectively resisting daily friction and erosion, and reducing scratches on the surface of the nails.