A quick search of the ingredients told me this:
Hairtamin contains: Black Seed Extract, Zinc, Japanese Knotweed Root Extract, Green Tea Leaf Extract, Turmeric Root Extract, Stinging nettle, Horsetail Extract, Vitamin A, D , C , Biotin and some other random ingredients.
My thoughts about it? Probably good for those without male pattern baldness and GENERAL HEALTH. Pretty much useless for those with. 25$ for 1 month supply of this is absurd. You can get all those vitamins and minerals through Omega-3 easily.