What type of shampoo is typically avoided to maintain hair color?

Sulfate-based shampoo is typically avoided to maintain hair color because sulfates are strong detergents that can strip the hair of its natural oils and cause color to fade more quickly. When hair is color-treated, it is important to use products that are gentle and designed to preserve the vibrancy of the color. Sulfate-based shampoos can lead to aggressive cleansing, which can lead to the premature washing out of hair dye and the dulling of color.

On the other hand, color-enhancing shampoos are formulated to help maintain and boost hair color, while sulfate-free shampoos provide a gentler alternative that helps to retain color for a longer duration. Moisturizing shampoos can aid in keeping hair healthy and hydrated, but they do not have the same potential for damaging color as sulfate-based formulas. Thus, the avoidance of sulfate-based shampoos becomes clear when focusing on color retention and hair health.