Sew-In Hair Extensions/Weave
Weave hair is applied by braiding the natural hair into cornrows first, then using a needle and thread to sew the weave into the braid or cornrow. Weave hair extensions are predominantly used for people with thicker hair because of the way they are applied. Generally speaking, the weave application is a very long process (usually several hours.) The tight application method often puts a strain on the scalp and can feel very heavy or uncomfortable, which is also why it doesn’t work well with thin or lighter hair.
This method is applied by an experienced hairdresser, as it is a very technical and difficult application that needs to be sewn in by a professional. Sew-ins also come in wig form, which is sewn into cornrows the same way, however, the hair comes in one piece as opposed to separate wefts. This type of hair extension is popular because it’s the most permanent and seamless, as the hair is literally sewn into your own hair and cannot come off.
If you have a weave, you need to moisturize the scalp, the nape and edges of the hair at least once a week and ensure you are using deep conditioning products. Another popular recommendation for people with weaves is to wash the hair with a special protein product to minimize damage and weakening of the hair. When it comes to styling, the same rules apply for real hair vs. synthetic hair—usually weaves come in real hair because of how long they are kept in.
It is recommended to remove the weave every 6 – 8 weeks, especially if you are trying to grow your own hair. The maximum amount of time you should have a full weave in your hair is 4 months as it will affect your natural hair's growth.