I have colour treated hair and live in a muggy climate that doesn't always agree with my hair styling choices. Using Prime Style Extender was a total game changer for me. I used it this past weekend while going to a street festival - we're talking dancing in sweaty crowds from the afternoon until dark. My hair looked good all weekend long, and I didn't even have to restyle the second day. I also really loved the feel of the bottle. It was a matte finish that not only felt super luxurious to hold, but also prevented the bottle from slipping out of my hand.