Yes, clarifying shampoo can be used on highlighted hair, but with caution. It can strip away oils and potentially fade highlights faster than regular shampoo, so use it sparingly, perhaps once or twice a month, and follow with a moisturizing conditioner.

The best clarifying shampoo for highlighted hair is one that is sulfate-free and specifically formulated for color-treated hair. Look for options with moisturizing ingredients to help prevent dryness and maintain the vibrancy of your highlights.

Individuals with very dry, damaged, or brittle hair should avoid frequent use of clarifying shampoo, as it can exacerbate dryness and breakage. Also, those with freshly dyed or toned hair should wait at least a week or two before using clarifying shampoo to prevent color fading.

Clarifying shampoo can help to slightly fade hair that has been dyed too dark by removing buildup and mineral deposits, but it is not a substitute for color correction. It will not significantly lighten the hair several shades and may result in uneven fading.