Cách sử dụng
Keratin is a type of protein that is found in various parts of our body, such as hair, nails, and skin. Keratin helps in forming a protective layer to keep these parts strong and healthy. It is important to note that keratin is commonly used in hair care products like shampoo and conditioner to help repair and protect hair. Additionally, keratin is used in nail treatments and skincare products to promote strength and smoothness.