How to Use Henna Powder for Hair: The Beginner Copper-Red Method

The short answer: to dye your hair with henna, mix the powder with warm water to a paste like thick yogurt, cover it and let it rest 3–4 hours (ideally 8), then apply it to clean hair in sections. Cover your hair and leave the paste on for at least 2 hours, rinse it out with water only, and wait 24 hours before shampoo or oil. Judge the colour after 24–48 hours: it usually deepens as it settles.

What you need

Enough henna to coat every strand thickly. As a starting point:

You'll also need comfortably warm water or warm tea with the leaves strained out, a non-metallic bowl and spoon, gloves, hair clips, petroleum jelly, a shower cap or damp towel, and an old towel for your shoulders. You don't need lemon, coffee or oil: henna releases its colour with water and time. If you're curious what add-ins do, see what to mix with henna.

Before you start

Patch test 24–48 hours before first use. Mix a little of the paste, put it on a small patch of skin and don't go ahead if the skin burns, swells, blisters or turns red, or if it itches and the itch doesn't settle. A strand test on a hidden lock, with the same paste and timing, shows you the colour before you commit your whole head. It matters most on grey, blonde, bleached or previously coloured hair.

Start with clean, detangled hair with no heavy oil, serum or silicone on it, since a coating stops the paste reaching the hair evenly. If your hair is already clean, you don't need to wash it again. Henna is for hair only, so keep it off your eyebrows, eyelashes and the area around your eyes, and don't apply it to a cut or irritated scalp.

Is it better to apply henna to wet or dry hair?

Dry or slightly damp. Damp hair can make sectioning easier, but soaking-wet hair dilutes the paste and makes it harder to coat every strand.

How to apply henna, step by step

1. Mix. Put the powder in the bowl and stir in the warm water a little at a time until it's smooth and thick, like yogurt: soft enough to spread, firm enough not to drip.
2. Cover and rest. Leave it 3–4 hours, ideally 8. This is when the dye becomes available in the paste.
3. Protect your skin. Smooth a thin layer of petroleum jelly along your hairline, ears and neck, keeping it off the hair itself, and put on gloves.
4. Section. Divide your hair into 4–6 sections with clips.
5. Apply. Work section by section from the roots to the ends, pressing the paste on generously. Cover grey roots completely rather than skimming them.
6. Cover. Pile your hair up and cover it with a shower cap or damp towel, so the paste stays moist the whole time.
7. Wait at least 2 hours. Longer gives a deeper result, as long as the paste doesn't dry out.
8. Rinse with water only until the water runs clear and your hair no longer feels gritty. Conditioner helps the last bits slide out.

How long should I leave henna on my hair?

At least 2 hours. Longer gives a deeper colour, as long as the paste stays moist under a shower cap or damp towel. A paste that dries into a hard shell stops colouring and is hard to rinse out. If your scalp feels uncomfortable at any point, rinse early.

Is it okay to leave henna on for 1 hour?

Not for this method. Two hours is the minimum; at 1 hour the colour usually comes out weaker.

What should you not do after henna?

• Don't shampoo or oil for 24 hours. Rinse with water only and let the colour settle. Conditioner is fine straight away.
• Don't judge the colour straight away. Fresh henna looks brightest just after rinsing, especially on greys, and usually deepens over 24–48 hours.
• Don't reapply in a panic. Another layer of henna only adds more copper-red. If you wanted brown or black, the next step is indigo, not more henna.
• Skip harsh clarifying washes and chlorine for the first 24 hours.

What should I expect?

Copper to red, depending on your starting colour: bright copper on grey or blonde hair, warmer auburn on brown, a red glint on dark hair. For the full picture by starting colour, see our henna page. Many people find their hair feels fuller and looks shinier afterwards. Dry or porous hair can feel stiff at first; conditioner and a softer paste next time usually help.

Henna lasts until it grows out: it doesn't wash out, and home stripping tricks aren't the answer. If it's redder than you hoped, stop putting henna on the lengths; for brown, including chocolate shades, mix henna with indigo instead (see henna and indigo for brown hair). The henna two-step process, henna and then indigo, gives black. A stain on your skin fades with normal washing over a few days. Wondering whether henna or box dye is better? Neither suits everyone; our article on whether henna is bad for your hair compares them.

How often can you henna your hair?

There's no fixed schedule. Once your lengths are the shade you want, colour only the roots as new growth shows. Henna builds up, so putting it through the full length every time makes the lengths deeper and redder with each application.

What are common henna mistakes?

• Cutting the rest short. Less than 3 hours and the colour can come out weak.
• Letting the paste dry out on your head. Keep it covered.
• Too little paste, leaving pale patches, especially at grey roots.
• Oiling before you apply. Oil blocks even contact.
• Using old or badly stored powder, which colours weakly.
• Adding lemon, coffee or sugar. None of them reliably makes henna darker, and strong lemon can leave your scalp stinging and your hair dry.

Frequently Asked Questions

Does putting Vaseline on henna help?

On your skin, yes: a thin layer of petroleum jelly along your hairline, ears and neck stops the paste staining them. Keep it off your hair, because hair it touches won't take the colour. It doesn't make henna darker.

How long after henna can I shower?

Straight away. Rinsing is part of the method, and water on your hair is fine. Wait 24 hours before shampoo or oil.

Does Vicks or sugar water make henna darker?

No. Those tricks come from henna designs on skin, where they help a paste stick. Hair henna is rinsed out after processing, so they don't apply. Rest time, enough paste and enough time on the hair are what count.

What happens if you let henna sit too long?

Usually a deeper colour, as long as the paste stays moist and your scalp feels comfortable. If the paste dries hard, it stops colouring and is harder to rinse out.

Is it okay to sleep with henna on?

You can, if the paste stays sealed under a shower cap and your scalp feels comfortable, but it's hard to keep it moist and off your bedding overnight. Leaving it on for a few hours during the day is easier to manage.

Can I shampoo my hair after applying henna?

Not for 24 hours. Rinse with water only, use conditioner if your hair feels rough, and shampoo gently after a day.

Can I colour my hair with henna?

Yes. Henna on its own colours hair copper to red, and the method on this page is all you need. The shade depends on your starting colour, so strand test first.

How can I cover grey hair without dye?

Henna is a plant dye, and alone it turns greys copper. For brown or black greys, see our guide to covering grey hair with henna and indigo.