Biotropin haven’t actually worked for me. I saw online lots of people saying good things about it, even on this site as you can see, it has a good grade (the stars) but I wouldn’t say the same. I did used other products which has worked and I have ordered all 3 types of Biotropin at once just to check which one would work better for me. none of them did. Of course their company haven’t returned a cent back. I don’t recommend it.