I have been very happy with the MD hair products. I especially like the serum, the supplements and the collagen. I went through chemo last fall and even though I used the cold caps I still lost about 50% of my hair. My last treatment was on December 7, 2023. I started using the MD products at the beginning of January. Even after just three months I see a big difference and my hair is getting thicker. I can’t see the tiny little hairs themselves because it’s mixed in with the rest of my hair but I used to be able to see a huge percentage of my scalp and now I can’t. I highly recommend the products. The first set of pictures are from early January when I started using the products and the second set of pictures are from early April.