Hi, Mahalialee!
I have never tried this one and don't know anyone who has. However, I have seen it online.
Did you realize if you are looking for a SUPER strength biotin, there is a 10mg available? Freeda vitamins makes 10mg tablets in 100 and 250 tabs. They are a kosher company and make some of the best supplements on the market. Available at 20% discount at their website and at Willner Chemists. Oh, and also at koshervitamins.com.
Happy, Happy Spring to you!!!!!!!!!!
Much Love,
Jade