 You know, we just recommend past puberty. So for about 12 years old on for a girl or 14 on is fine for taking collagenate. And then we've had people up in their 80s and 90s doing very well with collagenate, especially because as we get older, we're really noticing the loss of collagen. So a lot of times with the skin, hair, nails, we have a lot of elderly people that do very well with collagenate and helping their skin to be thicker and so they don't bruise as much.