How To Apply Sew-In Hair Extensions

Hair extensions are of many types and varieties. They have come a long way since they were first introduced. Here is everything you need to know about sew-in hair extensions and you can do it yourself if you don’t have enough time to get hair extensions in salon.

Decide The Texture First

Before you go into the sewing part, let’s start with what type of extensions would be the best to use. There are two options you can choose from.

  • Human hair
  • Synthetic hair

Human hair can be a bit more difficult to deal with as the wefts are quite delicate and they can tear in places when you are sewing the hair. Synthetic hair extensions is a good option because you can manipulate, tug and handle it in a more rugged way and they will still be intact. The shade range in synthetic hair is also wide and there is a color for everyone.

Know How You Will Wear Your Hair

Before using sew in hair extensions, it’s also important to decide how you will wear your hair most of the time. It can be hard to conceal the extensions and the sewing part, if you wear complicated and too tight hair styles every day. You will need to plan out your sections accordingly so that there is nothing peeking out and the extensions stay hidden, especially the seam. The seam is the bulkiest part of the hair extensions, this is why you need to make sure the sections are made in such a way that they remain concealed even after styling your hair.

Make A Braid On The Sections

Start with the thickest part of your hair and create a section. You will need to go horizontally from ear to ear until you have a section parallel to your crown. This is where you will need to take three equal sections of hair and start to braid them super tightly. The braid should go along the direction of the seam of the section so make sure it is as flat as you can make it. Once the braid is done, secure it with a small hair elastic and leave it along the seam of the section.

Sew, Sew And Sew

Afterwards take a curved needle and go up towards your crown, sew in the sections of the weft. This can be a hard process to do by yourself so have someone help you or use two mirrors to guide you perfectly. Sew the extensions in a loop stitch along the braid. The needle will poke through the braid you made earlier and that’s completely okay. You want the extensions to have something to grip to that is why you braided your hair super tightly in the first place.

Cut The Extensions

After the extensions have been stitched to your hair, now is the time to cut the hair if the weft is too long. Some people will cut the extensions before sewing it on the section, but it’s safer and easier to do after the weft is already on the head. It will give you a perfect measurement on where to cut the hair and you also won’t need to measure your hair before the sewing process to make sure the length is the same. So, save yourself a step or two and cut the extensions to your desired length after they have been sewed on.

Style Accordingly

Lastly, shampoo and condition your hair and dry them. After gently brushing through the hair and extensions, you can now style the hair however you want. Because you made strategic sections before the sewing, hiding the seams will be much easier and you will have a lot of freedom when styling your hair. When brushing your hair, make sure you are leaving a good inch or two along the seams, because you don’t want the brush to get stuck in the sewed seam of the hair extensions.


Sew in hair extensions are a much sturdier version of hair extensions and they are semi-permanent. They can be worn for weeks and they still don’t need to be removed. They are a more rugged type of hair extensions. Get them from salons that do hair extensions Potomac to prevent damage to your hair.