I actually read about this shampoo on this site. I order it from Amazon. It is Nioxin System 1 Cleanser shampoo for natural hair and light thinning with Nioxin System 1 Scalp Therapy conditioner for natural hair with light thinning. At first I bought the 3 pack shampoo, conditioner, and scalp massage, but I have never really used the message portion. There are different systems for colored treated hair, light thinning, or progressed thinning.

I have continued to use this one from the beginning. It seems like I have lots of hair in my brushes, etc, but my hair has remained fairly thick and full. I didn't reorder this once for a month or so, and I noticed a recognizable difference in the texture of my hair. I hope it helps you.