It does not say. but the ingredients are: USP Modified Lanolin, C8/C10 Triglycerides, Beta Glucan. Thats what it says on the back. I used this for the first month I was breast feeding and I don't think I could have done with out it. I no longer needed it after that. Beware though it will leave greasy looking stains on your bras and shirts so you really need to wear breast pads if you use it. It has the consistency of Vaseline.