Question: what is the best shampoo for wigs?
Answer: Awesome Synthetic Wig Shampoo. This mild, sulfate-free shampoo is designed for washing synthetic and human hair wigs and has a light and refreshing citrus scent. ... 
Jon Renau Shampoo for Synthetic Fiber Wigs. ... 
RemySoft Moisturelab Hydrating Cleanser Shampoo.