Here's what their website says:
|Technology makes the difference.
Whether it’s cold-smoothing or heat-straightening, Opti.smooth’s unique formulations protect your hair every step of the way. Your hair looks beautiful, feels natural, moves like silk. If you’re crazy about your curls but want more control, and less frizz, ask your stylist for an Opti.smooth cold-smoothing service.
If you’re dreaming of silky smooth hair that’s permanently straight, ask your stylist for an Opti.smooth heat-straightening service with a flat iron.
Professional Stylist Tip:
Q: Will this service damage my hair?
A: Opti.smooth’s patented ceramide technology and auto-stop action protect hair through every step. Conditioning agents leave it soft and smooth. Just maintain your hair at home with the Sleek.look Smoothing System, and you’ll be amazed at the condition and shine.