A hair weave installed by a professional hair stylist will last from 2 to 3 months. When used to protect a person's natural hair, a weave should not be left in any longer than 3 months.
Regardless of the method of installation used, hair weaves last about the same amount of time with proper care. They take between 2 and 4 hours to install, and the most common method of installation is braiding. Any type of glue-in extension will harm the natural hair and is not recommended.
A weave done with virgin human hair can be cut, heat styled and colored. Care should be taken to thoroughly condition the extensions to help them maintain their natural look. If properly cared for, the extensions used in weaves can last for more than a year and will survive multiple installations while maintaining a healthy look.
It is important to understand the length of hair extensions that are used in weaves. Approximately 12 inches will give the client shoulder-length hair, and 14 inches takes the hair slightly below the shoulders. For longer hair, clients should opt for extensions that are 20 to 24 inches long.
When in doubt about the installation process and the procedures for caring for a weave, clients should check with an experienced hairstylist for additional information.