A sew-in is a versatile hair installation technique that you should know. Learn everything you should know here, and see inspiration photos.

First things first: Sew-in weaves are a process where your natural hair is braided down into cornrows, says Nash, and a needle and thread are then used to sew down hair extensions onto the braids ...

While a regular sew-in weave can range anywhere from $100 to $600, crochet hairstyles typically stay in the $100 to $150 range, says Brown, with the extensions themselves costing $10 to $30.

Last resort: YouTuber Sierra Baynes reveals in a candid video how a bad weave caused her scalp to bleed and scab. Her hair was so damaged, she opted to shave her head bald ...