Bests & Worsts Reviews from Amazon

I read the reviews for this before buying it. I read them all, the 1* reviews as well. I am about 3 weeks in and I have NOT experienced ANY stomach/kidney/liver or other issues and I suffer from GI issues and am under the care of a GI doctor already. I haven't experienced any negative anything. As far was this biotin being of an extremely high dosage, my female socialist, GP, and GI doctor all recommend this dosage and 2 recommend this particular brand. So, I guess depending on your needs, this may be too high. I have weak fingernails in the dead of winter and edure the dry frigid temps Nebraska dishes out. I take a biotin supplement every winter. This is the first time taking this one because in addition to my weak nails I have started loosing some hair. The doctors can't find a reason why, with could just be the fact I turned 40 last fall. Although, the hair loss was abrupt, like 30% of my thick, full head of hair in less than 3 months. The hair loss has practically stopped since starting this. I also have peach fuzz even coming in the "bald' patches. My nails are stronger, a healthy strong, and no longer breaking, peeling, or nicking. My skin is, with the aid of some Hempz Triple Moisture and Age Defying lotions, is looking quite nice. So, I am quite pleased with my purchase. But, keep in mind, not all supplements will work the same for everyone. I would say that this one is worth a shot. I'd also like to note that the capsule is of medium size and is quite easy to swallow, even with a gag reflex issue.