Absolutely AMAZING if you want to keep your hair in great shape or repair damaged hair. I use the leave in treatment and my hair is silky & soft even though it is colored every 10 weeks (blonde-so extra harsh on my brown hair) and I blow it out and straighten/curl it daily. Highly Recommended!! Leave it in whenever you wash your hair--if i dont blow dry my hair for a day I spray on a ton of Infusium and let my hair soak it up while in a clip. Works wonders, I promise!!