I don't know. All I know is that it was a liquid. When I picked it up from the pharmacy, the pharmacist came to the counter to tell me how to use it. Frankly it never occurred to me to ask what it was specifically for. She never mentioned the word alopecia. Then I started taking biotin. This interfered with my test results. It also says that on the bottle in small print. So my doctor said stop taking it. Again, on my own, i am now taking collagen. The loss of hair seems to be at a standstill.