DON'T BUY THIS................... Total junk..... Very intrusive "steam" engine put crap all over my PC. When I finally tried it - after a 345 minute "install", it doesn't recognize my very standard sound card and crashes my PC....

I bought these for my wife. She'd been battling physical problems as a result of hypothyroid for years and it finally started to affect her hair. She was really upset and since she's already been on prescription meds, the doctor recommended biotin instead. It took awhile, probably about 3 weeks, before anything noticable changed. At that point her nails were less flimsy and her hair had more shine than in years. The pills were fairly easy for her to swallow, no after tastes and no noticable side effects occurred either.