I have noticed a marked difference in hair quality and thickness, I have also been suffering with joint stiffness and pain for a few years, post menopause related. The collagen has made such a difference to my pain it’s incredible. I had a week off as ran out, this is when I realised the huge improvement, as really noticed the pain increase when I didn’t take it. I now have it on monthly subscription, so it just appears when I get low, best decision 🥰