I have used Nioxin products for about 2 years. If you want to try something first, I would suggest the Scalp Therapy. That is their key product (imo). I use Scalp Cleanser, Moisture & Strength, and Structure & Strength as well. But for first time use I would highly recommend the Scalp Therapy. When you use the products at first you will probably not like it because you hair my feel tangly and a little dry. But it's bascially a detox for you scalp and hair so after using the products regularly you will love the feel of your hair. If you have a salon in your Wal-Mart they usually have the Nioxin in sets and that will save you a good amount of money. I get mine at a beauty supply store where I pay 1/2 of what they would sell it in the store but the big 32 oz. bottles last a long time.