- Is Rainbow Research henna permanent?
- Yes. Henna bonds to the hair and is permanent; it cannot be shampooed out or lightened with bleach without damage. Test on a strand first.
- Will Burgundy show on dark brown or black hair?
- It adds a dark auburn tint that shows most in sunlight on dark hair. It will not lighten hair, so the change is subtle on very dark shades.
- Can I use it over previously dyed or bleached hair?
- Henna over chemical dye or bleach can give unpredictable, sometimes brassy results. Do a strand test before committing to the whole head.
- Does it cover gray hair?
- Henna tints gray toward auburn rather than fully covering it, and results are uneven. It is not a dependable gray coverage product.
- How many applications does 4 oz give?
- One 4 oz pack typically covers short to medium hair once or twice, depending on hair length and how thickly you mix it.
- When is the price lowest?
- Only one new listing was found: $8.26 at Herbspro as of November 7, 2026. With a single seller there is no price history to time a drop against.
- Where is the Rainbow Research Henna Hair Color Conditioner 4 oz - Burgundy (Dark Auburn) cheapest?
- At Herbspro, for $8.26, as of our latest check.