I have been using this product just for 2months but seen some significant difference. My hair started to grow, and started to have some hairline. I hardly gives any feedback but this product is worth for it. andSons' customer service agents are very helpful too. Once they have missed to send my dermaroller, but i was given immediately after i highlighted to them. The delivery takes approx 5days (andSons' can consider on improving on this). Overall satisfied with the whole product and services.