I'm a 24 yr old male who has a pretty full head of hair. About 2 yrs ago I slowly noticed a slight recede in my hair and slight thinning on the top of my head. Also slight thining on the crown. I have excellent coverage still but I can tell by the time Im 30 I will have lost alot more hair. My brother is 32 and is VERY thin. I have been using Nioxin for 8 months and it seems to have helped my hair but it still looks a little thin in some spots. People have commented that Im going thin. I have bought rogaine foam but I'm scared to use it. My question is should I use this product if I still have excellent coverage. I have been doing tons of research online and have heard horror storries about shedding and such. Any opinons or advice is much appreciated.