Your hair may not be pin straight if you have curly or textured hair, but it will look straighter. Get the largest curlers you can find. If possible, find some curlers that are about the same size as soda cans. [1] X Research source If you are not opposed to using heat on your hair, then using large hot curlers can speed up this process. Otherwise, go for some foam rollers and be aware that you will need to leave them in for quite a while.

Make sure that your hair is damp throughout, not just in a couple of places. Remember that your hair should be damp, not dripping wet. If you decide to wash your hair, dry it with a towel when you are done and let it air dry for about 30 minutes before you put it into the rollers. If you don’t have time to air dry it, you can use a hair dryer to get it about 80% dry.

Sectioning off your hair will allow you to put the bottom section of your hair into rollers first and then work on the top section of your hair. If you have extra thick hair, then you may need to divide your hair into three or four equal sections.

Remember that your hair should be damp, but not dripping wet.

When choosing a smoothing product, find one that you can use without heat. Avoid products that are made for use with a flat iron or blow dryer set on hot. If you don’t have any anti-frizz serum, then you can just use a small amount of your normal conditioner on the ends of your hair.

When you reach the ends of each piece of your hair, hold it taut for a few seconds. Keep going until all of your hair is dry and straight.

Most blow dryers have a cool air setting. The button may say “cool” or have a picture of a snowflake on it. [6] X Research source

You can use hair clips to hold the sections you aren’t working with out of the way.

You may want to choose a product that’s labeled for straightening. Look for a product that you can use without heat. Don’t use a product that says it’s for use with a flat iron.

It may take longer to dry your hair on the cool setting, so be patient. You can also let your hair air dry, but it might result in a frizzier result, depending on your hair type. You can also wait and dry your hair after you’ve wrapped it. However, it may take longer.

Continue wrapping your hair until all of your hair is wrapped.

Your hair should be smoothed slick around the diameter of your head.

If you are sleeping on the wrapped hair, which is the easier method, you should use hair pins, as they are more comfortable.

You can also sleep on a silk pillow case. If you want a faster result, you can dry your hair with a blow dryer on a “cool” or “warm” setting.

If you are in a hurry, let down your hair after it’s dry. It’s best to blast it with your blow dryer to ensure the style has set. You can add more control by spritzing your brush with a light hold hair spray and then brushing through your hair.

Keep in mind that this method will only work on straight or wavy hair. For example, if you are going to be riding in a car or bus for a while, then you might want to try combing your hair straight. You can also use a brush if you prefer, but it might result in wavier hair. [15] X Research source

Make sure that your hair is damp, not dripping wet.

As you comb your hair, start at the roots and move downwards. When you reach the end of your hair, hold each section taut for several seconds. [16] X Research source You can speed up this process by sitting in front of a fan, but you will have to comb your hair non-stop until it is dry if you use a fan. [17] X Research source Keep combing until your hair is completely dry and straight. Keep in mind that you may have some waves, but your hair should be much straighter than usual when you are finished.