February 2, 2013
I don't have another product to compare Biotin to, so I thought it was ok. I've never had a hard time "growing" nails or hair, but both break easily. After using Biotin for 3 weeks, I noticed that my nails grow slower, but they are so much stronger and don't peel or chip anymore. My hair actually has grown faster. A fifth of an inch in 2 weeks isn't bad. I'm going to add the collagen with the silica and some sulfer to see what results I get!