Brand new, unused item. ・ 3 types of "oil-soluble" proteins: Isostearoyl hydrolyzed keratin Isostearoyl hydrolyzed collagen Isostearoyl hydrolyzed silk Ingredients that support hair quality improvement, reproducing an exquisite feel and texture without weighing the hair down. As an advantage of oil-soluble proteins, they are less likely to wash away than water-soluble proteins, so you can easily feel their repairing ability when used in home care. ・ Low-irritation damage care system with amino acid surfactant (Sodium Lauroyl Methyl Alanine) + betaine activator. We also focused on foaming and rinsing. ・ Contains levulinic acid (Increases hair moisture content through bound water) Levulinic acid is a good match for home care products that are used continuously.