480ml Strong surfactant or high alkaline shampoo (common found in shampoo as Sodium Lauryl Sulfate), especially film coat forming chemicals commonly used to make hair smooth and easily combed such as silicone which is not easily soluble in water and does not cleanse off easily, therefore it is deposited on to hair. This silicone deposit, not easily degradable, will obstruct the hair pore, causing dysfunction of hair cell and hair loss when used in long term.