Is this good on keratin treated hair?

Yes, this is safe for keratin treated hair, and we've had a lot of positive feedback from our customers that it works very well with their keratin regimen. As your stylist has probably advised you with your post-Keratin treatment, in order to maintain the best smoothing and anti-frizz benefits, you want to use sulfate free and sodium free hair products. LuxeOrganix Rejuvenating Argan Oil Shampoo and Conditioner is 100% free of sulfates and sodium chloride, and is safe for professionally straightened hair, including Keratin or Brazilian Blowout treatments