Before I started using this product I had a receding hairline. I now have long full hair. This collagen product has strengthened my hair and nails. It has even strengthened my bones. Since using this product my arthritis has lessened some. My father-in-law recommended this product to me. He had a serious bout of Palsy and couldn't play ball anymore. Since taking this hydrolyzed collagen +C he's playing ball again and the shaking from having Palsy has lessened. I stand by this product and recommend this particular brand. I've tried other brands of collagen, but this particular brand works the best. You will see results in a matter of weeks. I've used 'the original hydrolyzed collagen +c for 5 years now and wouldn't be without it. I'm the healthiest I've been in years. When we get older we need to put back calcium and iron back into our bones. Read the label and you will see in a matter of weeks that this product does what it says. Strengthening hair, nails, bones, ligaments, muscles and skin. It really works.