How Long Do Sew-in Hair Extensions Last?

If you want to change your hairstyle, try sew-in hair extensions. This extension technique will appeal to those who want to make their hairstyle as comfortable and safe as possible, as well as enjoy the same length for a long time.

Keep reading our article to know more about how this beauty treatment is done, for whom it is suitable, how long it can be worn, and how to care for it.

What Do I Need to Know About Sew-in Hair Extensions?


Sew-in hair extensions are an extension technique where extended and tressed strands are sewn into a braid around the head.

For this beauty treatment hair stylists use two types of tresses:

  • Machine-tied weft – the tresses are made with special equipment. Their production requires a lot of hair, which is why machine-tied hair extensions are very dense.

Due to their thickness, this option is suitable only for customers with naturally thick curls. If you use machine wefts for loose or thin strands, a large weight of the tress can lead to hair loss!

  • Hand-tied weft – tresses are made by hand. That is why they come out very thin, comfortable, and neat. This extension suits everyone: even clients with thin hair.

And it is done taking into account the size of the head and other features of the client: hair density, a desired number of rows, etc. This method of fixing strands is absolutely safe for health, and the extended curls are as comfortable as possible in wearing.

How Long Can You Keep Sew in Hair Extensions?


The service life of the extensions depends on several factors:

  • What material was used for the production of tresses;
  • The method of fixing strands;
  • How often you do reapplication procedures;
  • Hair care.

Let’s focus on each of these points in more detail.


Suppose you plan to use Chinese, Vietnamese, or Indian hair for extensions. You come with a bundle to the hair stylist, they attach extensions, and… you will want to take them off literally after the first wash.

Why is this happening?

To begin with, the raw materials from the Asian market are not suitable for all due to their density. Such hair is visually different from your natural curls so the hairstyle won’t look perfect. Moreover, heavy weight can weaken natural hair and provoke hair loss.

But this is not all: bundles from the Asian market undergo a very aggressive disinfection, which destroys hair cuticles. To hide such hard processing, the raw material is coated with silicone. Once you wash your head, the silicone is washed away. Hair starts to tangle, so you just can not comb them. The only way out is to quickly take off the poor-quality extension.

How to fix the situation?

Choose the raw material with the thickness that suits you:

  1. For the thinnest strands use Slavic hair: soft, thin, and silky curls. Such bundles are supplied undyed.
  2. For slightly denser hair we recommend Russian or dyed hair. Here you have a large selection of shades and textures (from smooth to curly).
  3. And finally, for the thickest hair choose European hair.

All three types of raw materials undergo delicate processing, so they will serve you for as long as possible – from 9 months to 1 year.

Extension Method

To understand how the extension method can affect the wearing time, we should describe how this beauty procedure is done:

  1. The hair technician makes a thin braid around the head;
  2. Next, a tress is attached to the braid;
  3. During the reapplication procedure, the tress is taken off, and the hair is unbraided. Then a new braid is made and the tress is reattached to it.

If the hair tech does not master the technique and makes a too tight braid, you have to contact them to correct this situation.

In case there are no problems, you will be able to wear the extensions for 6-9 weeks.

The great advantage of sew-in hair extensions is that during the reapplication procedure you do not lose one centimeter of length!

The same tress is taken off and reapplied to your hair. This is especially important for those clients who prefer a certain length.

In the case of fusions or tape-ins, the length is reduced with each reapplication procedure, which is why some customers change the bundles before their service life expires. Sew-ins can be worn as long as the condition allows!

Reapplication Procedure

You have to make reapplication procedures every six to nine weeks. Failing that, the locks start tangling, which will negatively affect their health.

Do not neglect this issue and visit your hair tech regularly for reapplication procedures!

Hair Care

Proper care is as important as any other point.

If neglected, you risk spoiling the quality of extended strands faster, as well as damaging your natural locks.

How to Take Care of Sew in Hair Extensions?


We have compiled main recommendations to help you prolong the time of wearing sew-ins:

Comb properly

Make a low tail with your hand. This is done to reduce the load on the hair roots.

Start combing from the tips, gradually moving upwards. Do not make sudden movements that can damage the hair. Try to work especially carefully in the place of the tress fixation, so as not to tangle hair.

How often do you need to comb? We recommend doing this in the morning, after waking up, during the day – on necessity, and before bed.

Choose a proper comb

Forget about products with ball tips or sharp tips, they only increase the risk of tangling.

It is best to buy a special brush with nylon and boar bristles.

Wash your head with warm water

Do not forget to comb your hair before washing your head: this way you will remove all the fallen hairs that may tangle the hairstyle.

Adjust the water temperature: it should not be too hot or cold. Ideally, wash your head with warm water.

Do not forget about quality care products

Many recommend using sulfate-free shampoos because they are the most delicate.

However, we do not support their use on a permanent basis: sulfate-free shampoos can not effectively wash your hair.

In addition to shampoo, choose conditioner and mask. Hair conditioner should be used every time you wash your head. Mask – once a week.

Make sure that these products do not contact the place of hand-tied wefts attachment.

Blow dry your hair carefully

Dry it with a hairdryer. The faster it dries, the less prone it will be to damage.

Avoid drying with high temperatures, it can make the locks drier and more brittle. Do not forget to use thermal protection – it will protect hair cuticles from unnecessary damage.

Tie curls up before bed

The best option is to make a loose braid that will protect it from tangling during sleep.

To extend the time of wearing the extensions, we recommend purchasing a silk pillowcase that minimizes friction and entanglement of the strands.

Do you know where to order quality sew-in hair extensions?