I can't live without it!! Seriously. I have such oily hair, that I absolutely could not dream of even going 24 hours without washing my hair. I was desperate to try and find something that helps. This in combination with other products now lets me wash my hair at night, and remain oil free in the morning! I still do a tiny spritz of LP's dry shampoo at the roots right before I leave the house to keep the oil at bay for the rest of the day. If I don't sweat, I'll sometimes even get away without washing my hair two days in a row (but on the second day I'll need much more dry shampoo)
This is how I use the style extender: I shampoo/condition my hair with the Not Your Mother's Clean Freak Clarifying line. Love it! Especially for the price! then, I put about a good nickel-sized amount of the style extender into my hair, starting at the places I get most oily (roots and bangs). I work it in really well with my hands and brush it through. Then I lightly spritz my hair with EVA NYC Speed It Up Blow Dry Spray which shortens my blow dry time and offers heat protection. (I looooooove love love the kms calfornia free shape quick dry spray, but it's double the price of the EN one.) I blow dry my hair, and sometimes I'll flat iron it, depending on my mood. When I wake up my hair is never unmanageable, the flat ironed style stays really well-- and I roll around a lot in my sleep according to my boyfriend.
It doesn't really work too well for me if I curl my hair. But then again my hair is very thin and can't hold a curl to save it's damn life, no matter the technique or product. lol!