Yes, you can use a curling iron on your hair after a keratin treatment. But make sure you wait at least 2 weeks before using any sort of heat styling tools as keratin-treated hair is still malleable during the first simple thanksgiving hairstyles fortnight of application. So in case, you DON’T want to remove the keratin treatment, I’d suggest waiting out at least two weeks before using any sort of heat styling tools (curling irons, flat irons, etc.) on hair.

The keratin solution is applied to the hair, blow-dried and dried and then straightened using a flat iron. If you’re looking to splurge or you have a big event coming up for which your curls must be perfect, it may be best going back to your hair stylist. They will have the experience and know-how to curl hair after a keratin treatment.

No the treatment is not permanent nor will it “grow out”. The treatment gradually and evenly washes out so there is no “line of demarcation”. This treatment does not change the inner structure of the hair, but rather creates a protein layer overlay on the cuticle which protects the hair. As the hair is protected for an extended time, the condition of the hair is improved. Swimming in the ocean or pool is fine, but the life of your treatment may be compromised if you swim regularly. A leave in serum or conditioner is a great product to apply before swimming to protect the hair from the elements such as chlorine and salt in the water.

“A keratin treatment is more for smoothing and frizz control compared to a straightening treatment, which is to straighten the hair,” explains Lordet. The goal of a professional keratin treatment is to smooth hair and eliminate frizz. It does this by using a combination of chemicals and heat to break the hair’s bonds and lock strands in a straighter position—without completely straightening hair. At-home treatments are usually much cheaper but they won’t last as long. If you’ve had a keratin hair straightening treatment, I won’t recommend going for tight curls as it requires too much manipulation.

It will feel noticeably softer and silkier, with added life, shine and vibrancy. Only use a microfiber or 100% cotton towel on your hair to scrunch and or wrap up. Seriously this is worth it, you will have way better curl results. At the shampoo bowl, reapplication of the neutralizing solution for 2 minutes.

Hair remains straight, smooth and frizz-free even when the weather gets humid. Review your calendar to be sure nothing requiring your hair to get wet is planned for the three days after your treatment. This includes visits to humid places like the San Francisco Bay, our coast, and aquariums.