What Are Weft Hair Extensions & The Advantages Of These Sew-In Weave Extensions?

Wear weft hair extensions? Why not! It was one of the first hair extension techniques to emerge. If you are planning to buy sew-in hair extensions, please read this article first. We explain what is sewn in weft hair extensions (also called wefts or weaves) and why you should invest in the weave extensions. Indeed, there are several points that you need to remember about sewn in hair extensions installation.

What are Weft Hair Extensions?

Weft hair extensions are also called weaves or sew-in hair extensions, which contain a single, very wide strip that is sewn directly onto the hair. This strip is cut and then sewn onto small braids on the head. The extensions blend very well with the hair and the result is therefore simply natural! Weft sewn-in hair extensions are a classic and one of the first hair extension techniques to have seen the light of day!

A packet of weft hair extension contains: A package contains a single strip of very wide extension cords that will be cut off later and installed in rows. 

The number of packages you need to take varies depending on the thickness of your hair. Here are our recommendations:

• If you have thin or moderately thick hair: it is recommended that you take 1 pack of sewn extension cords.

• If your hair is very thick, it is recommended that you take 2 packets of sewn extension cords.
  
  

Pros of Weft Hair Extensions

What are the benefits of wearing sew in weft hair extensions By wearing sewn-in hair extensions, you have a lot of benefits. Extensions are safe and blend discreetly with your hair. Discover the benefits of sewn-in extensions:

1. Sewn-in weft hair extensions are inexpensive

This type of extension itself is pretty inexpensive, especially when you compare them to other types of extensions and consider that these extensions last a long time. For a lower price, you have extensions that last longer. Therefore, these extensions are considered to be inexpensive extensions. In addition, the price for the installation of sewn extensions is not high. Although every hair salon and hairdresser has its own prices, sewn-in extensions are normally the cheapest hair extension technique. Typically, the cost to install a row of weft hair extensions is between $ 15 to $ 20. For a complete head, it takes 3 to 5 rows. So, in conclusion, the price for sew in weft hair extensions installation is between $ 45 to $ 100. Please note that this is only an estimate and that each hair salon and hairdresser has its own prices.

2. Weft hair extensions blend naturally with your hair

One of the most important advantages of weft hair extensions is that they are inconspicuous. In addition, we offer a quality of hair called virgin hair. In other words, virgin hair extensions mean the hair is made from 100% real human hair. It gives a much more realistic appearance than if the extensions were made from synthetic hair. You can straighten and curl the extensions with your heating devices without difficulty.

3. Sewn-in weft hair extensions give you more varied hairstyle possibilities

As the weave in hair extensions are directly installed according to the shape of your head, you have more varied hairstyle options. These are extensions really suitable for thick hair. If you have thick hair and are not sure what type of extensions you want to choose, then you should really think about buying sewn in extensions, because they are really compatible with thick hair! These extensions can also add volume and length to your hair in the blink of an eye. If you have a wedding that you are due to attend in a few days, and you want to add volume or length to your hair, then you can always resort to these extensions to give you more length and volume in the blink of an eye. eye! These extensions can really transform your virgin hair, going from short and fine to long and voluminous in a matter of hours. The results are instant and immediate.

4. Weft hair extensions are safe

Weft extensions are really safe for the hair. No glue or product is added to hold them together. If you have weak hair, this is ideal for you. Over time, there have been many horrific stories about hair extension poses gone wrong. After all, hair extensions have become so popular that anyone can improvise themselves as an "expert" at applying hair extensions. Although hair extensions are not supposed to damage your hair, it could be that a hairdresser makes human error and damages your hair. The most important benefit of weft sew in hair extensions is that even if the technician or stylist installing hair extensions weft make mistakes, you won't get damaged hair. Since no glue, chemicals, or heat are used, you can have peace of mind that installing sewn-in hair extensions will not damage your hair.

5. Sewn-in hair extensions are reusable

If you take good care of weave weft, you can reuse sewn in extensions and pull them back up when your hair grows. We invite you to watch the video below to understand how to properly maintain hair extensions. You can also consult our many blog articles on this subject. At any time, don't hesitate to contact us if you are looking for advice on how to maintain your hair extensions. Being a hair extensions company specializing in this industry, we can help you with tips and tricks to make your hair extensions last!

1. Tension on Natural Hair

Because weft extensions are sewn, glued, or beaded into your natural hair, they can put strain on the scalp. This tension may cause discomfort, breakage, or even traction alopecia if worn too tightly or for long periods.

2. Maintenance & Upkeep

Wefts require regular maintenance every 6–8 weeks to keep them secure and looking natural. Without adjustments, they may slip, tangle, or show at the roots.

3. Limited Styling Options 

Depending on the installation method, certain hairstyles (like tight ponytails or updos) may expose the wefts, making them less versatile compared to clip-ins.

4. Scalp Irritation 

If not installed correctly, the stitching, glue, or beads can irritate the scalp, leading to itching or discomfort.

5. Potential Damage with Improper Care  

Using heat tools, harsh shampoos, or neglecting proper brushing can weaken the weft bonds and damage both the extensions and natural hair.

How Long Do Sew-In Weft Extensions Last?

Usually, sewn-in hair extensions are made of real human hair, so it can last a long time without getting damaged. However, after a while, your natural hair will start to grow, so the braid that the extensions are sewn onto will become looser and stretch. Therefore, your extensions will be placed quite unevenly in your hair, and you will need to take them out and put them back.

You should remove your weaves extensions approximately 6-9 weeks after installation. Leaving them too long may delay your hair growth, and your hair may start to grow slowly afterward. Therefore, if you want your hair to grow quickly, you should always remove your extensions around 6-7 weeks after installation.

The maximum limit to keeping this type of extension is four months! Sewn-in extensions shouldn't stay on your head for more than four months at a time, because doing so may slow down your hair growth, and could even damage your scalp if left on for too long.

1. Sew-In (Weave) Method

• Step 1: Braid natural hair into cornrows close to the scalp.

• Step 2: Thread a curved needle with weaving thread.

• Step 3: Place the weft along the cornrow and sew it in using blanket stitches.

• Step 4: Secure the ends with knots, and repeat until all wefts are attached.
  Best for thick or coarse hair, lasts 6–8 weeks with proper care.

2. Beaded Weft (Micro-Bead / I-Tip Hybrid)

• Step 1: Section the natural hair horizontally.

• Step 2: Place a weft on the sectioned line.

• Step 3: Use silicone-lined beads to secure small sections of natural hair with the weft.

• Step 4: Clamp beads flat with pliers to hold the weft in place.
  No glue or heat, reusable, lasts 6–8 weeks, requires regular maintenance.

3. Glue-In (Bonded) Method

• Step 1: Section off natural hair.

• Step 2: Apply hair glue to the top of the weft.

• Step 3: Press the glued weft firmly onto the sectioned hair near the roots.

• Step 4: Allow glue to dry and continue layering.

  Quick method but less durable; can cause damage if glue isn’t removed properly.

4. Tape-In Weft Method (for thin or fine hair)

• Step 1: Section hair into small horizontal rows.

• Step 2: Peel backing off pre-taped wefts.

• Step 3: Sandwich small sections of natural hair between two tape wefts.

• Step 4: Press to seal with fingers or a flat iron (low heat).
  Gentler on fine hair, easy to remove and reapply.

5. Clip-In Wefts (temporary option)

• Step 1: Section natural hair horizontally.

• Step 2: Open clips on the weft.

• Step 3: Snap clips close to the roots under the sectioned hair.

• Step 4: Blend with natural hair.
  Fastest and most beginner-friendly method, no salon required.

1. Daily Care

Gentle Brushing – Use a wide-tooth comb or loop brush, starting from the ends and working up to the roots. Hold the base of the wefts while brushing to avoid pulling.

Keep Hair Dry at Roots – After washing, make sure the braided base and wefts are completely dry to prevent mildew or odor.

Avoid Excess Tension – Don’t pull hair into very tight ponytails or buns, which can stress your natural hair and scalp.

2. Washing Routine

Frequency – Wash every 1–2 weeks (or as needed if you use lots of product). Over-washing can loosen the wefts.

Shampoo – Use a sulfate-free, moisturizing shampoo. Gently massage the scalp with your fingertips—avoid rough scrubbing at the braid line.

Conditioner – Apply conditioner mid-shaft to ends (not on the weft base) to keep extensions soft without loosening the thread.

Drying – Pat dry with a microfiber towel. Use a blow dryer on a low heat setting to make sure the braided base dries fully.

3. Styling & Products

Heat Tools – Use heat protectant sprays before straightening, curling, or blow-drying.

Light Oils/Serums – Argan or jojoba oil on the ends keeps extensions shiny and frizz-free. Avoid oils at the scalp to prevent slippage.

Minimal Product Buildup – Heavy styling products can tangle wefts and weaken stitching.

4. Night Care

Wrap or Braid Hair – Put hair in a loose braid, ponytail, or use a silk bonnet/scarf before bed to reduce tangling.

Silk Pillowcase – Helps minimize friction and breakage.

5. Maintenance & Removal

Salon Touch-Ups – Visit your stylist every 6–8 weeks to tighten or reinstall wefts. Leaving them in too long can cause matting or stress on natural hair.

Professional Removal – Never cut or rip out wefts on your own; always have them safely removed by a stylist.

FAQs About Sewn In & Weft Hair Extensions

1. Why do sewn in hair extensions cause itching?

Itching with sewn in hair extensions usually happens when the scalp is adjusting to the braid foundation or if the weft extensions are sewn in too tightly. It can also be due to product buildup, dryness, or trapped sweat under the weave in hair extensions. To reduce itching, keep your scalp clean, moisturized with light oils or braid sprays, and avoid scratching, which may loosen the hair extensions weft.

2. Can you get sewn in weft hair extensions with thin hair?

Yes, but it requires extra care. For clients with thin or fine hair, traditional sew in weft hair extensions may put too much tension on fragile strands. Instead, a stylist may recommend beaded weft extensions or partial weave in hair extensions with minimal braiding. Always consult a professional to ensure the hair extensions weft won’t cause breakage.

3. How to remove sewn in hair extensions?

Never try to rip out or cut sewn in weft hair extensions at home. The correct removal process involves carefully cutting the threads that attach the weft extensions to the braids, then gently unbraiding the natural hair. This should always be done by a stylist to avoid cutting your own hair or damaging the weave in hair extensions.

4. Can you swim with sewn in hair extensions?

Yes, but with caution. Sewn in hair extensions are more secure than clip-ins, so swimming won’t immediately loosen them. However, chlorine and saltwater can dry out both your natural hair and the weft hair extensions. If you plan to swim, wear a swim cap, rinse your weave in hair extensions right after, and apply a leave-in conditioner to maintain softness.

5. How to sleep with sewn in hair extensions?

To protect sew in weft hair extensions at night, braid your hair into one or two loose braids, or wrap it with a silk or satin scarf. Sleeping on a silk pillowcase also reduces friction that can cause tangling in your weft extensions. Proper nighttime care will extend the lifespan of the hair extensions weft and keep your install looking fresh.

6. How to wash sewn in hair extensions?

Wash sewn in hair extensions every 1–2 weeks with a sulfate-free shampoo. Focus on cleansing the scalp and gently massaging between the braid lines without rough scrubbing. Condition the mid-lengths to ends of the weft extensions, avoiding the base where the hair extensions weft is sewn in. Always dry the braids and weave in hair extensions completely to prevent odor or mildew.

7. How to find a good sew in hair extensions salon?

Look for a salon that specializes in sew in weft hair extensions and has certified stylists experienced with braiding, weft extensions, and weave in hair extensions. Check reviews, ask to see before-and-after pictures, and confirm the salon uses high-quality hair extensions weft. A good stylist will also consult you on the best type of weft hair extensions for your hair type.

8. How to buy the best sew in hair extensions?

When buying weft hair extensions, always choose 100% human remy or virgin hair for the most natural look and long-lasting results. Decide whether you want machine-tied or hand-tied hair extensions weft, depending on your styling needs. Reputable suppliers often offer bulk discounts on weft extensions and allow color matching. Avoid cheap synthetic weave in hair extensions, as they tangle easily and can’t be styled with heat.