... .Keep the effect for at least 3 months 4.Allergy free, safe,green product 5.OEM [Ingredient]Polygonum multiflorum extract, ... is natural hairdye, non-toxic, no side effects, feel free to use.5.The product is a natural Chinese medicine ... air and close the bottle cap, if with long hair, please assure enough amount to ensure hair dye effect.7.The ... before. Hair dye cream 100% natural 100Ml*3 allergy free