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Add Wefts to a Hair Topper or Wig for Volume

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Learn how to add wefts to a hair topper or wig by sewing them in with this step-by-step tutorial! Perfect for enhancing volume, adding length, or blending in highlights for a natural, fuller look. For more hair topper posts, see my Wig Revival page.

Add Wefts to a Hair Topper or Wig for Volume

I was so excited when I got my very first human hair topper—the moment I tried it on, I was hooked. It felt incredibly soft and looked unbelievably natural. But in all my excitement, I totally overlooked one important detail: the density.

I didn’t realize it was a 120% density topper, which is considered medium. While I actually prefer low-density toppers (since they lay flatter and are more undetectable), I was just thrilled to finally have one.

The topper I chose was a rooted, light dimensional blonde, with a 6 x 6.5 cap base and 18 inches in length. It featured wefts sewn along the edges and was made from a blend of Brazilian and European hair—both known for being soft and fine-textured.

After a few wears, I started to notice something a bit concerning: I could feel some of the wefts under the crown sticking out. I worried that if the wind blew or someone was behind me, those wefts might be visible.

It was a learning moment—but one that taught me the importance of paying attention to cap construction and density before clicking “buy.”

I was able to fix the problem by adding hair wefts underneath the sewn-in wefts that were already in the cap and by adding a few wefts right under the crown section that was bothering me.

The best part about adding the new wefts is that they made the topper longer! Into a 22-inch instead of an 18-inch! Score!

I was unable to find rooted Brazilian human weft hair extensions. I ended up having to color some wefts I did find to use.

This post is going to be rather long. There is a lot to go over, like when you color blonde hair brown when using human weft hair extensions. You do not need to read the coloring process if you are using the correct color wefts or synthetic weft hair. I broke the post up into sections. Use the Table of Contents below to skip around.

Adding Wefts to a Hair Topper or Wig

HW

Where to Find Human Weft Hair Extensions:

I searched everywhere online and ended up finding some Brazilian hair blonde wefts on Amazon. It was tough to find Brazilian wefts that were one, actually Brazilian hair, and two, of the same quality as the hair topper I purchased.

With Amazon, you just have to read the reviews and take a chance. I was unable to find traditional human hair wefts. I ended up buying a clip-in type weft hair extension set and took them apart. I removed the clips and separated the wefts.

Double Weft
Double Sewn Wefts
Single Strand Weft
Single Weft

In my search, I was looking for single weft strands (right pic); most wefts are two stitched strands of hair sewn together (left pic). The one with the two stitched strands is folded in half and then sewn together.

You can just use a seam ripper to separate them and make one long strand of hair.

I bought 120 grams of Brazilian Remy 18-inch straight wefts in color 18/613. I ordered them in 18-inches to add extra length to the topper.

NOTE: You may be able to find Brazilian wefts at beauty supply stores. My local Sally’s Beauty Supply had gorgeous quality hair wefts for around the same price as Amazon. Hair wefts can run anywhere from $50-200+. You also may be able to find wefts that are already rooted these days, so you can skip the dyeing process tutorial below.

How to Color Hair Extensions

BEFORE YOU PROCEED, ADDING A WORD OF CAUTION: Coloring human hair wefts can permanently change or damage them if not done correctly. If you do not feel comfortable attempting to try these methods, please seek a professional wig stylist to assist you in coloring your wefts.

I use what’s now called Demi-permanent or Semi-permanent hair color to color my wigs. It causes the least amount of damage and fades out naturally with minimal damage.

DISCLAIMER: Kim Purvis, Made in a Day, and the Purvis Group LLC are in no way responsible for damaged wefts, wigs, or hair toppers using this advice.

To match my rooted topper, I colored the roots of the wefts with 6W Dark Sand, Wella Demi-Permanent (or semi-permanent) Hair Color. I added a drop of a blue base color additive to the solution so the end result would not be super warm/red and to cut brassiness and orange tones.

Here’s why…

COLOR BLONDE HAIR BROWN: When coloring blonde hair back down to a brown shade, you must add a red/orange base to the color solution. The easiest way to do this is by using a shade of color with “golden tones,” which actually has red tones.

If you don’t add those extra gold/red tones to your hair color, the result will be an ugly greenish brown. Using an “ash tone” brown color alone would cause the hair to turn green or even a shade of grey, depending on the color.

Golden color shades, like dark golden blonde or light golden brown, work perfectly to add enough red. To make the hair more ash/cool and less golden/warm, use a small drop of a blue color base in the color solution.

WARNING WHEN USING COLOR ADDITIVES: Demi(semi) color brands usually sell base shades like blue, violet, and clear to customize their colors. But a little goes a long way when adding in base colors. Add 1/4-1/2 the size of a pea. If you add too much, the hair will pull too much of the color of the base, in this case, blue!

Why are you using a light color like level 6 to make dark roots? Why not put a level 5 or 4?

I always go one shade lighter than the color I am trying to achieve. You never know how porous bleached processed hair can be. It grabs the hair color rather quickly. I would rather it be too light and go darker a second time than have it be too dark the first time.

Level 7 is a dark blonde but usually ends up looking like light brown if it takes really well. Wella Demi Color 6W is a mix of levels 6 and 7. So it’s a perfect blend to get a light brown shade.

If you need to go darker, like a level 5 medium brown or 4 dark brown, just go one level above what you want, but make sure it’s a “warm-golden shade”. You can always color it again to get a darker color.

When coloring human hair wefts, you never know how the hair may react because you do not know how it was processed. Once you get the perfect shade color mix, write it down and save it for next time.

Color Formula to Color Blonde hair Brown

Wella Color Charm Demi Color Mix is 1:2 which means, I part color with 2 parts developer. Mix 1/2 oz of 6W with 1 oz developer. Add a small 1/4 pea-sized or smaller drop of blue color additive to the color. Remember, a little color additive goes a long way. Less is more. Mix to blend the color solution well. Apply to hair.

NOTE : Only use Wella Demi developer with Well Demi color. Do not use regular hair color peroxide.

If you can’t find Wella Color Charm Demi colors, you can also try other Demi-permanent hair color brands in the shades 6W Dark Warm Blonde or 5G Light Golden Brown.

CHW

Color the Roots of Weft Hair Extensions Tutorial

SUPPLIES:

  • Hair color and peroxide (discussed above)
  • Color Brush
  • Mixing bowl

INSTRUCTIONS:

  • Lay an old towel or trash bag down on a large surface to work on.
  • Lay the wefts out into rows. I rolled up the ends so I wouldn’t get any color on them. See pic below.
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  • Using a color brush, paint one inch of the root area of the wefts on both sides.
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  • Paint the color on quickly, or do them in small batches, because the wefts will process fast and be ready to wash them out in around 5-7 minutes.
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  • Fold the wefts in half and rinse the wefts from the base up.

WARNING: Do not let the water run down the shaft of the hair, it will darken the ends.

  • Shampoo and rinse the base/root area, only leaving the ends of the wefts alone.
  • Let them air dry.


Sew in wig wefts

Sewing Wefts into a Wig

How to Sew in Wig Wefts using Hair Extensions

Sewing in wig wefts is done the same way as adding hair to a topper. You need synthetic or human hair wefts (depending on the wig), in the color you’re going for. You can add highlights, length or volume by sewing in wefts.

The process for adding wefts to a wig is the same for a topper; just follow the same instructions for stitching them in below.

Add Wefts to a Hair Topper:

SUPPLIES:

  • Curved or heavy-duty needles
  • Polyester Thread
  • Hair Wefts
  • Wig T-pins

INSTRUCTIONS:

  • Secure the topper or wig onto a canvas head with wig pins.
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  • Determine the area to add the wefts and clip the hair back with clips to hold it secure.
  • Lay the new wefts under the original wefts and pin them into place with wig pins.
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  • Sew the wefts to the original wefts with a curved carpet-type needle or a heavy-duty straight needle.
  • When securing the weft, go through the topstitched sewn area of the original weft when stitching.

TIP: I use strong polyester thread. I prefer to use a backstitch technique to make sure it is secure. Be careful when stitching into the stretchy cap fabric, it is delicate and can tear.

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  • Move around the base area from side to side.

I added 5-6 wefts going down the back and the sides of the topper. You may need more if your base is larger than 6 x 6.5. I had a lot of wefts left over to use, so 120 grams of hair may be enough for a slightly larger base.

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NOTICE: I wasn’t happy with the color of the roots on this batch of hair wefts. I forgot to add in my blue base, so they ended up goldish red. I used Loreal Root Spray in Light Golden Brown to cover the roots of the wefts. This blended them in perfectly.

The cool thing is the root spray doesn’t wash out that easily. I haven’t had to touch up the roots and I have washed it several times. The root spray also hides the sewing machine stitching on the wefts. Win-win!

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Here is the topper all finished with the new wefts added. It blends perfectly! Sewing in the wefts worked like a charm!

Not into sewing? Some people have tried using used tape in hair extensions for a quick way to add volume or length!

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Brush the hair out and trim the wefts if needed. I left mine untrimmed for thin, natural-looking ends.

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I am so thrilled with how this turned out. I no longer feel the wefts under the crown, and the extra length is the bomb! I have my mermaid hair! One thing that was surprising, though, was the weight of the topper after adding the hair. It definitely feels heavier on my head.

I hope you learned how to customize wigs using hair extensions. This is a great solution for a thin topper, a slightly shorter topper, or maybe adding highlights to a wig. Get creative and have fun with it!

Do you have a wig you didn’t wear or just didn’t like the color? Join my FB group and sell or trade it with a wig sister! See ya there!

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Add Wefts to a Hair Topper or Wig for Volume Length
Kim xoxo BS
Add Wefts to a Hair Topper or Wig for length volume
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9 Comments

  1. The topper look beautiful! Thanks for sharing

  2. Antoinette Kleynhans says:

    Hi

    It looks beautiful!

    I need help with mine…

  3. hi Kim!
    I have progressive hairloss and bought my first (sadly also very expensive hair topper) a few years ago. I was hoping you would have an instructional on how to replace the topper cap and also add lacefront to a regular topper that usually is meant to blend in with one’s hair… As I am losing more hair in the front now… it’s becoming impossible to blend.

    any instructions or guidance would be greatly appreciated 🙏
    sending love
    Hana

    1. Hi Hana, I do not know of a way to add a lace front or replace the inside cap of a topper to a larger one. You will need to purchase a new larger one to keep up with your hair loss. If the topper you have now is still in good shape you can resell it in the wig groups on FB or Instagram. The next step after a topper no longer works for you is a wig. There are lots of affordable toppers that have synthetic fiber synthetic with lace in the front. Human hair is unfortunately a lot more pricey. I started with a small 6×7 topper and now wear a larger 7×9. I hope this helps.

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