Have you ever thought about that the shampoo and the like hair products are a waste of money, even to cause damage to your hair. Surely you can not get a affirmative answer from the shampoo companies. The only information you can get from them is that how many advantages you may get from shampoo.
Here I need to say aloud that shampoo is harmful and wasteful. When you wash your hair with certain traditional shampoo, you may actually be stripping your hair and scalp of their natural oils. To be honest, lots of shampoos mostly rely on sodium laurel sulfate or other damaging detergents for cleansing, among which there are many ingredients are not subject to approval. And these generate a thick lather to clean hair and meanwhile cause dryness, frizziness, dullness and color fade. For example, sulfates are the most common cleaning ingredients used in commercial cleaning products. There is no doubt, the harshest sulfates are the least expensive which could be the ones most likely to be used in cheap shampoos.
Remember that not only the shampoo will harm real hair, it will also do damages to the full lace wigs. So wash your wigs just with water as possible as you can.