Some synthetic hair extensions are heat safe. The packaging will usually indicate up to what temperature it is safe to curl or straighten the hair.

Clip your hair out of the way, if needed.

Cut upwards into the strand to thin out the ends and make them lay like real hair. Use a lower heat setting on your straightener or curling iron. A high-heat setting can damage an extension, even if it’s made from real hair.

You may have to shake the can for a few seconds first. Read the label on the can!

Be aware that some of the colored spray may come off on your brush or comb!

Colored hair spray will usually last 2 to 4 shampoos, but it varies depending on your hair type and the color used. Darker colors may stain fair hair. [8] X Research source

If water is not available, it’s safe to apply hair chalk on dry hair, too. The results just may not be as vibrant.

While you can use a chalk pastel from the arts and crafts store, it is best if you use actual hair chalk. It is more vibrant and more importantly: non-toxic. [13] X Research source

If you are using a curling iron, you can wrap the strand around the barrel to create a curl. Keep in mind that some color may rub off on the straightener or curling iron. In most cases, you should be able to wipe it off with a damp cloth. [16] X Research source You can also use hairspray to help the chalk stick to the hair.

Colored hair chalk typically lasts 2 to 4 shampoos. Be aware, however, that darker colors may stain fair hair. [19] X Research source

Light hair: 20 volume Medium to dark hair: 30 volume Very dark hair: 40 volume

The section can be as wide or as narrow as you want it to be. Most people stick with 1 inch (2. 54 centimeters). If you’ll be streaking hair at your hairline, apply petroleum jelly to your hairline.

Be sure to work in a well-ventilated area. Do not use a metal bowl; it will react with the bleach.

It would be a good idea to cover the bleached section with plastic wrap so that the bleach doesn’t affect the rest of your hair. Make sure that your hair is dry. Never apply bleach to et hair. [23] X Research source

Your hair may process sooner than the recommended time on the package. If your hair is starting to look pretty light even before time’s up, you’re ready for the next step. [25] X Research source

Don’t use any conditioner at this point.

Re-section your hair as before, if needed.