Most notably, this product really and truly will kill frizz. I have been trying every serum in the book to block frizz. Shu, Kerastase, Pureology, it's not as if they don't work but the frizz tends to creep back in as the day goes on. This finishing spray lasted all day and didn't dry out my hair. It provided nice shine too. I would put the hold level at a light-medium. This wouldn't work well for gravity defying updo's but on the positive you can brush if you need and it doesn't feel hairspray like on your hair. 5 for frizz reduction and 3.5 for hold.