I know it can take up to 1-3 months to see any noticeable results after starting a new supplement, so I wasn't expecting any miracle results right away. What I can say, is these Biotin & Collagen liquid drops haven't cause any adverse side effects, and I believe my hair and skin are starting to look and feel healthier and more supple looking. As per suggestion on the bottle, I keep it in the fridge for best results, and take one full dropper a day. The liquid tastes similar to skittles, in my opinion, which is nice because it has to sit under your tongue for 10 seconds before you swallow it. Overall I am happy with my purchase and looking forward to seeing more results the longer I continue to use it.