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Rainbow Research Henna Hair Color & Conditioner in Black (Deep Ebony) is a 113 g powder dye made from red henna (Lawsonia inermis) and black henna (Indigofera), with no added chemicals or pesticides. It coats the hair shaft rather than lifting it, so it darkens and blends grey but cannot lighten hair. Color is said to last 4-6 weeks and fade gradually, and the powder has a 6-month shelf life. The best new price is $6.17 at Amazon as of November 7, 2026, with two stores selling it new.
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Lowest price we've seen: $6.17 on Nov 7 at Amazon. Tracked across 2 stores since Nov 7.
Buyers rate it 5 out of 5 from 12 ratings and praise it as a gentle, chemical-free way to cover grey on dark hair and beards. Complaints center on dryness after use, patchy root coverage and results darker than expected when left on too long.
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