Brand from Japan: SGNI. Contains penetration-promoting ingredients that work well with keratin, and when used in combination with keratin, it penetrates keratin more effectively, improving hair damage.Contains seven types of nano-sized PPT ingredients that penetrate easily into the hair, penetrating and repairing the inside of the hair.Contains carefully selected amino acid and peptide cleansing ingredients.How to use:After shampooing, take an appropriate amount in your hands and apply it to your entire hair using a comb or brush, then rinse thoroughly.For damaged hair, leave it on for 5-10 minutes before rinsing thoroughly.