"Hair loss sucks.I've invested enough money in finding the best nonsurgical way of regrowing my hair ,and I think that DNC-L has worked the best for me.Yet, I don't just use DNC-L.I have found that the Sodium lauryl sulfate free Revita Hair Growth Stimulating Shampoo by DS Laboratories helps keep my scalp clean and not flaky.This may not work for everyone,but I have my own system that seems to work for me.With these 2 products I take vitamins,ginkgo biloba,and saw palmetto.Each has there own benefits,combined these keep the blood to my scalp healthy for the follicles.Plus I have a water filtration system in my house to keep the chlorine off my skin,the vapors out of my lungs,and out of my body.Chlorine can be harmful in more than one way.One other important thing is my hair is cut short and I think this can help the DNC-L get directly to the scalp where it is needed.If you buy these products the last important thing is follow the directions if you want results. There are several reasons why people loose their hair.If you drink too much I think that those hangovers that dry your scalp and lower your brain fluid could be a cause also."