I have been taking these tablets for around 4 months everyday at the same time, so I am now onto my 2nd bottle and feel I can give an in-depth review. I didn't see any results for at least 3 months so I would say keep going with it! I brought them to improve my hair growth as I am thinning. I personally haven't noticed a difference in my hair, however, my hair dresser said she thought my hair was thicker after I mentioned taking the tablets (still not sure on this though). My nails however have become much stronger! I also didn't expect this but my skin is the main improvement. My acne has improved and my Eczema is none existent right now. Normally in winter with the cold, I have very dry skin with flare ups but the tablets have made a massive improvement on this. For this reason alone I would recommend. I would say be cautious of taking this high dose of Biotin. The downside is I have really bloated since taking these. I did some research and although biotin doesn't really make you gain weight, it can cause water retention and with this, bloating. I stopped taking them for a 4 days and instantly noticed I wasn't as bloated, however, my acne has sadly come back in this time period. On a whole, I'd recommend these, but be prepared you might suffer other side effects. It depends what matters to you the most I think! I will take every other day now and see if that helps.