After years of wasting time with frizz fighting products that just don’t work and constantly using a flat iron to achieve a sleek, smooth look, you’re finally considering a professional hair straightening treatment. But how long does it last? Is it worth the investment? There are different types of straightening and smoothing treatments, each with their own timelines, but generally, a treatment can last four to five months. Let’s break each treatment down.

3 Types of Hair Straightening Treatments

Keratin

This treatment, which uses keratin protein to fill and smooth the hair cuticle, typically lasts up to four months. It is important to use sulfate free shampoo during this time to extend the effectiveness of the keratin.

Brazilian

A Brazilian smoothing treatment, which uses amino acid protein to fill and smooth the cuticle, allows you to customize the treatment so you don’t have to completely lose the natural texture of your hair. As with the keratin treatment, you should use a sulfate free shampoo. The benefits of a Brazilian treatment last up to four months.

Cezanne

The Cezanne treatment is a smoothing treatment only – it is not a straightening treatment. It

uses a special formula consisting of sericin, a type of silk, that wraps itself around individual strands on a molecular level to create smoothness. It is customizable like the Brazilian treatment, so you can keep curls and waves and its benefits last three to five months depending upon hair type.

Tips for Extending Your Straightening Treatment’s Lifespan

• Wash your hair less often. The more you wash your hair, the more the treatment will dissipate. So keep this in mind when you go to wash your hair.
• Minimize your time in a chlorine pool, as well as salt water, as both can impact your hair. Rinse hair immediately after getting out.
• Use a pH balanced, sulfate-free shampoo and conditioner.
• Keep your hair hydrated.
• Sleep on a silk pillowcase to reduce friction and minimize frizz.