Does Black Shampoo Work on Gray Hair? An Honest Look
If you’ve spotted a bottle of “black shampoo” on a beauty shelf and wondered, “Wait… will this actually tone down unwanted yellow or brassy tones in my gray hair or turn my hair black?” you’re not alone. Lately, there’s been a buzz around these deep-pigmented shampoos promising to “darken,” “tone,” or “neutralize brassiness” in gray […]
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