(1)Use the proper shampoo and conditioner—a very mild, not-stripping shampoo, and both products should be sulfate-free and have a low pH
(2)You could use a product called“Knot Sealer"
(3)Do not to blow dry the hair with a high setting since otherwise the knots may be damaged or split, just let it air-dry or in low temperature
(4)Do not sleeping with the wig wear on.
(5)Do not wash the wig frequent, wash your wig about every three weeks or 2 weeks in the summer
