If your hair is folded, it’ll create a crease where the fold is. That means you can’t use any type of wrap or cap, even if you’re not using a ponytail holder.

Keep in mind that a cotton pillow case may cause frizz or might ruin your results.

If you sleep on your side or stomach, your hair may get creased or frizzy. Try to position pillows or a folded blanket around your body to prevent you from rolling over to your side. This might help you stay on your back.

Because of the treatment, your hair shouldn’t be too kinky or fluffy. [3] X Expert Source Patrick EvanProfessional Hair Stylist Expert Interview. 17 January 2019. Don’t spray any hair products on your hair before you brush it.

Make sure your hair is completely straight without any creases or frizz. Even a small dent needs to be smoothed with a hair straightener because it will stay in your hair after the treatment sets.

Avoid using a high heat because it can cause more damage to your hair. Stick to a medium heat and try using a heat protection product to minimize the damage. [4] X Expert Source Patrick EvanProfessional Hair Stylist Expert Interview. 17 January 2019.

Use your straightener each time you notice a crease, waves, or frizz during the first 3 days. Otherwise, your keratin treatment may not set.

After the 3 days, it’s okay to brush your hair as much as you like.

Each time you wash your hair, it will remove some of the keratin from your hair. That means washing your hair often may shorten the life of your keratin treatment. If your hair gets dirty or oily before it’s time to wash it, use dry shampoo to remove excess dirt and oils.

You can find products that are labeled as “sulfate-free” or “chlorine-free. ” Ask your stylist to recommend the best shampoo and conditioner for you.

Add more oil to your hands to cover all of your hair, if necessary. Make sure the oil you choose is 100% coconut or 100% argan oil.

This includes things like curling your hair, creating up-dos, or braiding your hair. Additionally, you’ll need to wait until day 4 to use hair accessories like headbands, scrunchies, ponytail holders, or hair clips.

If you don’t have a swim cap, wash your hair within 4-5 minutes of getting out of the pool or hot tub.