Thats the million dollar (£) question. I don't know if its doing me any good to be honest.
My hair isn't frizzing at all on a day to day basis so a thumbs up there but i sweat alot from my head so if i go clubbing its as if i didn't put the product on at all and it frizzies up on me....so i have to wear my hair up when i go out. On that front its a thumbs down as thats primarily why i bought it.