I compared several facial skin brushes before purchasing the Mary Kay Skinvigorate Brush and am so pleased! It is water resistant so can be used in the shower. You can use any facial cleanser with it and it lathers the product up nicely. The soft bristles are gentle on the skin and leave it feeling extra clean and exfoliated. Replacement brushes are only $18 for two and each brush lasts 3-4 months when used twice a day. The Skinvigorate Brush uses 2 AA batteries so there's no need to plug in for charging. Great product!