Finally got my hands on this. I was a bit skeptical since I've tried Garnier Surf and Marc Anthony Fiber. I was disappointed with both, they didn't really thicken my hair at all.
BUT, this stuff is pretty damn good. At first it doesn't seem any different, but then it starts to dry and it makes a huge difference.
I have diffuse hairloss, my hair is really short like 1 inch all around. What I do is not dry my hair (not even with a towel) after I get out of the shower. I shake off excess water with my hands so my hair isn't too wet. Then I apply the putty to my hands, evenly through the fingers and work it into my hair.
I spike it back, to the side, shake it up to get it fuller. Then I start to press my hair forward since I still can't pull off the spike up. As it starts to dry keep working it and "fluffing" up your hair, press down, repeat.
Good luck finding it, I had to turn to Ebay and pay a markup =(