Neutrogena Anti-Residue Gentle Clarifying Shampoo A drugstore favourite is the Neutrogena Anti-Residue Gentle Clarifying Shampoo ($5), which removes the shine-dulling residue that can kill your volume. It's gentle enough for all hair types, and is affordable enough to make a staple in your shower. Image Source: walmart.com Neutrogena Anti-Residue Gentle Clarifying Shampoo $5 from walmart.com Buy Now