Maintenance is very simple. Great Lengths extensions can last up to 4 to 4.5 months if cared for properly. You can receive your regular color services, be as active as you want, and pull your hair completely up. Brushing is key, along with a pH neutralizer sprayed on the bonds anytime they become wet to guarantee your extensions longevity! Great Lengths extensions are just like your own natural hair, if it is good for your hair, it is good for the extensions!