Recently I just purchased Nature Bounty's Biotin 5000mcg and Vitamin C 500mcg. Since I just started taking them, I have noticed no difference. I am anxious to see how well the Biotin works I was only taking 500mcg before. I expect that I would get more body hair so far not only 3 weeks daily intake. I will keep using and hope for the best. I wonder too about this Brand. Thanks for posting the question. I look forward in reading the other ladies responses.