Look, I found this video on teh interwebs, and I really want to stress to you that this is NOT how you use laser diodes:

I know there can sometimes be a lot of confusion about the "proper usage" of lasers for hair loss, and I just wanted to lay it flat out right here that this would NOT be an effective way. I bet that he got zero results using it this way.
Besides, CLEARLY that is a undiffused diode with the lens cap still on, and I can't even attest that it's conturing the surface at a fixed distance.
-O.M.G.
PS- If you aren't laughing... lighten up, Francis! lol...