Brazilian straightening is a type of protein-based, thermal reconditioning technique that turns frizzy, curly locks into soft, straight hair. The Brazilian straightening method involves using a protein solution on hair and then applying intense heat with a flat iron to seal the treatment into the hair fiber. Like all chemical salon services, however, the hair must be in great condition before having any work done. Schedule a pre-straightening visit with your stylist to evaluate your hair and determine if thermal reconditioning through Brazilian straightening is right for you.

Things You'll Need

How to Prepare for Brazilian Straightening

Rinse your hair in warm water to begin the shampooing and deep conditioning process. Shampooing and deep conditioning should be done one week in advance of your Brazilian straightening service.

Apply a moisturizing shampoo to your hair. Gently massage the scalp using the pads of your fingers. Rinse the hair thoroughly and repeat.

Apply a protein reconstructing conditioner like Joico K-Pak Deep Penetrating Reconstructor to the hair.

Cover the hair with a plastic shower cap.

Allow the hair to process under a warm dryer for 10 to 15 minutes.

Remove the shower cap and rinse the hair thoroughly in cool water.

Apply a thick, creamy moisturizing conditioner to the hair. Repeat steps 4 and 5 to deep condition the hair.

Remove the plastic shower cap. Thoroughly rinse the moisturizing conditioner from your hair in cool water.

Apply a leave-in conditioner to the hair.

Detangle your hair gently with your fingers first. Follow up and finish detangling your hair with a comb.

Air dry your hair and style as desired.


  • Tell your stylist if you have used permanent colors or other types of chemical straighteners. If you have used a sodium hydroxide (lye) or guanidine hydroxide (no-lye) relaxer, your hair may be incompatible with Brazilian straightening.

  • Have a stylist perform strand tests throughout your hair to check the hair’s strength and compatibility with Brazilian straightening.

  • If you wish to color your hair, color it two weeks prior to Brazilian straightening.

  • Avoid using heavy oils or conditioners in the two days just prior to the service. They may decrease your straightening effect.

  • No further preparation is required the day of your visit. Your hair will be washed prior to the service, so it may be wet or dry and styled with product when you arrive.