If you still have hair on your scalp but your progressed thinning I highly recommend the NIOXIN 2 SERIES. I can only tell you from experience that I've been really religious using it for 8 months now and my hair is coming back thicker and it's regrowing where I lost it.
But do keep in mind I've stopped stressing out and I do have a better diet. I do also take biotin and collagen as well just for a booster. But!!! The NIOXIN 2 is the real reason. So again just be patient don't stress the BS and just have a healthier diet and I can assure you that results will come.