I have a lot of fine wavy hair that looks wonderful right after I fix it, then as soon as I go out in the Austin humidity, I get the three F's - flat flyaway frizzies. With Serge's Dream Big - I got an extra oomph that lasted all day. It's hard to describe, but it actually "plumped up" my hair fibers and bound those frizzies together, adding volume and texture. After all your blow drying and curling, just spritz and tease the hair at the crown of your head, scrunch up your roots then add an allover light spray when you're done. I don't shampoo daily, so I was really surprised when that extra oomph lasted for days! The only reason I didn't give it five stars is that the smell kind of reminds me of old fashioned Aquanet. But after it dries, the smell fades pretty quickly. I really recommend this stuff!