Whether you’re a stylist looking to add sew in extensions to your services or someone at home curious about trying this method, you’ve come to the right place! These extensions are one of the most popular and long-lasting ways to add length and volume, and when done correctly, the results are stunning. This guide will walk you through everything you need to know to do sew ins from start to finish.
One thing worth mentioning before we get into it: if you’re new to sew in extensions and don’t feel fully confident, we always recommend seeking out a professional stylist. Extensions done incorrectly can cause damage to your natural hair, so when in doubt, leave it to the pros!
What Are Sew In Extensions?
So, what are sew in extensions exactly? Sew in extensions are a method where weft hair extensions are sewn into natural hair using a needle and thread. The natural hair is braided into small rows first, and the weft is then stitched onto each row to create a seamless, secure hold.
They’re durable, versatile, and can last anywhere from 6 to 8 weeks with proper care before needing to be removed and reapplied. They also work with all weft types, including machine-made, hand-tied, and hybrid wefts, making them a versatile option.
Some beaded weft extension methods also use a variation of the sew in method. They’re applied in rows on the hair, creating a “track” with a signature bead and string technique. The hair extension wefts are placed on the track and sewn into the natural hair.
How Many Rows of Sew In Extensions Do I Need?
If you’re new to this method, you’re probably wondering how many rows to use. The number of rows really depends on the look you’re going for and how much of the natural hair will be left out. Most applications use 2 to 4 rows, with more rows needed for a fuller, more dramatic look. A best practice is to start with fewer rows and add more as needed based on the desired result.
How To Do Sew In Extensions: Step-By-Step
Before getting started, make sure you have everything on hand. Here’s what you’ll need for a smooth sew in application:
Add these for beaded weft:
Big Kizzy carries all these professional tools to get you ready to learn how to do sew in extensions.
Now for the fun part! Here’s how to put sew in extensions in from start to finish:
Step 1: Prep the Hair
Start with clean, conditioned hair. Section the hair where you plan to place your first row using your sectioning ring, hair grippers, and clips to keep everything neat and out of the way.
Step 2: Create Your Braided Rows
Create a straight part across the back of the head and braid the hair along that part into a row. Secure the end with a hair elastic. Repeat for each row you plan to apply. Make sure your braids are flat and even for the cleanest application.
For beaded weft: Skip the braiding step entirely. Instead, slide a silicone bead onto a thin section of natural hair, position it slightly away from the scalp, then clamp it with your extension pliers to lock it in place. Repeat along the part to build out your rows.
Step 3: Thread Your Needle
Grab your C-curve weaving needle and measure out your nylon thread. You’ll need 3 to 5 times the length of the row you’re working on. Thread the needle, pull it through, and tie a double knot to secure it in place.
Step 4: Sew the Weft
Place your weft against the braided or beaded row along the scalp. Insert the needle under and through the braid or beaded row to begin stitching. Continue sewing along the row with tight, even stitches, making sure each stitch goes through both the weft and the braid. The stitches should be firm enough to hold everything securely without being so tight that they cause discomfort or damage.
Step 5: Finish and Repeat
Once you reach the end of the weft, tie off the thread and trim any excess with your small weft scissors. If you’re doing multiple rows, repeat the process for each one until the application is complete.
How To Apply Sew In Hair Extensions: A Few Pro Tips
Now that you know how to apply sew in hair extensions, here are a few tips to get the best results:
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Use a magnetic wristband to keep your needles within reach at all times.
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Hair grippers are super helpful for keeping sections in place without tugging on the hair.
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Always check your stitch tension as you go, too loose and the weft will slip, too tight, and it can cause tension on the scalp.
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Plan to remove and reapply the extensions every 6 to 8 weeks to keep the natural hair healthy.
Sew in extensions are a skill that gets easier with practice. With the right tools and a little patience, you’ll be getting gorgeous results in no time. Stock up on everything you need for sew in extensions (and all the popular hair extension methods!) on our website.