How to get rid of green tint after indigo

Indigo colour can deepen as it settles, so avoid rushing into another treatment. If the tint remains, henna can add red-orange tones, but the result depends on your starting colour and what you have already applied.

Why indigo can look green

The starting colour matters. Indigo used without a henna base tends to leave grey or light hair with a blue or green cast. The effect can be especially noticeable where the hair is pale, including grey sections, because there is little underlying colour to soften the indigo tone.

This is different from a two-step colour process, where henna is applied first and indigo follows. If you used indigo on its own, or some areas missed the henna step, a cool or greenish result is more likely. Uneven application can also leave different sections looking unlike one another.

Check the product label, too. Pure henna, Lawsonia inermis, gives red-orange tones; products sold as black, brown or blonde henna contain other plants or chemicals. Knowing what was in the mix helps you decide whether a henna layer is a suitable correction.

Give the colour time to settle

If you have just rinsed out a henna-indigo application, wait before deciding that the result is final. Henna-indigo colour usually deepens over about 24–48 hours. The freshly rinsed shade may not match the colour you see once it has settled.

During that period, avoid applying another dye simply to counteract the first impression. Look at the colour in ordinary daylight and check more than one section, including the greys and the lengths. This helps you tell whether the green tint is widespread or limited to places where indigo was used without a henna base.

Waiting is not a guaranteed fix for a pronounced green cast, particularly if you applied indigo alone to light or grey hair. It is a useful pause before making a further change, because a second application can add more colour and may make correction harder.

Warm the tone with henna

If the tint remains after the colour has settled, henna is the plant dye used to add warmth. Pure henna gives red-orange tones, which can make a result look less cool or green. It will not lighten the hair, and it cannot be relied on to produce an exact shade.

A henna gloss or a second henna layer may be considered when you want a softer warming effect or when the green tone is still obvious. A gloss is generally chosen for a more subtle result than a full application, but there is no single formula that suits every starting colour. Follow the instructions for the specific powder or product rather than guessing a mix.

Test the planned application on a hidden lock or a clipping first. Check the dried result in daylight before deciding whether to proceed. If the test looks too red, too dark or uneven, do not apply it across your whole head. Henna is effectively permanent: it may fade a little, but it tends to grow out rather than wash out.

Choose a correction carefully

Do not assume that more indigo will cancel green: indigo itself can give light or grey hair a blue or green cast when there is no henna base. If you are unsure what was in the original product, pause and identify its ingredients before choosing another colour treatment.

Avoid harsh strip remedies

Bleach and strong colour removers are not a reliable first response to a green tint. Plant dyes cannot lighten hair, so another plant-dye application cannot take the colour back to a paler starting shade. Trying to force a quick change may leave you with a result that is harder to predict.

Be particularly cautious if the product was compound henna, which can contain metallic salts. These may react badly with bleach or chemical dye. Before using either over henna, test a clipping of hair; do not rely on the product name alone to confirm what is in the mix.

If your aim is simply to make the colour warmer, a strand-tested henna application is a more relevant option than stripping the colour. If you are considering chemical colour, get advice based on the ingredients used and the strand-test result rather than applying it straight away.

Test before applying more colour

For any dye, do a patch test 48 hours beforehand behind the ear or on the inner elbow, following the product instructions, and strand-test on a hidden lock or clipping. If you have a reaction, rinse it off and seek medical help.