The purpose of an at-home keratin treatment or professional keratin treatment is to "smooth out frizzy, damaged or dry, ...

The step-by-step is listed below: You should use keratin shampoo, blow-dry your hair, and space out your washes if you don't have coloured hair. We'll walk you through each step and offer ...

Professional hairstylists advise waiting two weeks following a keratin treatment before colouring your hair. ... * Eliminates all colour chemical stains (at step 1 -- clarifying) ...

"The keratin treatment can last up to 3 to 5 months," says Jarvis. The reason it lasts this long is to give the chemicals enough time to penetrate the hair shaft and work, says Dr. Chacon.

A keratin treatment is a semi-permanent way to get your hair smooth, straight, and silky. Here's everything you need to know about the service.