I have been using for about a month now, and have noticed my facial hair seems to grow slightly more rapidly, as far as I can tell. I usually post pictures, but no selfies sorry ;p Will update in another month. I'm by no means a medical professional, but do your research and cross reference different sources of information, and the benefits of biotin supplements are evident. As for the actual product, its clean, well manufactured, and sold at a competitive price. I have enjoyed using several different Now supplements with measurable success. Would highly recommend. Feel free to ask any questions, I typically respond within a few days.An unpaid and honest review, -shaolin