Brand from Japan: Keratinum13. Keratinum shampoo and treatment with three types of keratin for shiny, moisturized hair. Keratinum 13 series is a high-purity & high-performance keratin formula.The finish is gentle to both hair and scalp, especially for those who have high damage to their hair from perms and coloring.How to use:Take an appropriate amount on your hand and massage your hair and scalp to wash it off.Then rinse thoroughly with water or lukewarm water.