I purchased Biotin because more hair than normal was coming out when I showered. Because my hair is normally thick, no one else noticed it, but I sure did. It’s been about a week, and the amount of hair that I am loosing has lessened. But the real surprise was that after a few days, I noticed that my fingernails were long and strong! I would definitely recommend this biotin. But remember … take it with your B50 complex!