I'm 21 and have slowly been receding for years. I remember people commenting on my hairline when I was about 15. I didn't do much until recently because it wasn't that bad. I tried emu oil and alpecin but didn't see much. Now I started using a generic minoxidil about a month and a half ago and can see new baby / stubble hair on the sides. I did get a slight headache the first time but not since then. I only use once before bed and occasionally in the morning if I remember. Definitely worth a go if you are young and getting a bit worried.