Synthetic wigs tend to last 3-6 months. Lifespan depends on how often you wear your wigs, how often you style it, and how often you wash it. A good rule of thumb is to wash your wig after 7-10 days of use. When washing your wig, use shampoo and conditioner specifically formulated for synthetic wigs. If your synthetic wig is not heat friendly, using heat styling tools can damage the hair.