It's Pure Org Herb Hair Dark Brown - 110g

Indigo tinctoria (indigo) powder, Lawsonia inermis (henna) powder, Cassia auriculata (cassia) powder, Emblica officinalis (amla) powder.
100% organic, no artificial additives whatsoever.

To check the colour, we recommend you strand test a small section of your hair before applying to your entire head.

A few other things to bear in mind:

You can achieve a darker colour result with repeated applications. 

The colour is also affected by how long you leave the paste on. If you leave the paste on for 1 hour it will be a lot lighter than if you leave it on for 3 hours.
When you first wash out the dye it will often not be the full depth of colour but will gradually deepen to its true colour as the dye oxidises with the air.

On very light coloured or grey hair the colour sometimes appears to have a green tinge at first, but don’t panic - this will fade gradually over a few hours or days, as the dye oxidises, and the colour deepens.

If your hair has been chemically lightened it will affect the colour result. - Chemical lighteners make your hair more porous and thus absorb the colour less predictably.

It is not recommended to use chemical bleach after using herbal hair colour containing indigo unless it has faded or grown out. This is because bleach will not remove indigo so you may be left with a bluish colour.

There may be slight variations in colour result between different batches of Herbal Hair Colour. - The botanical ingredients can be affected by varying climatic conditions from year to year.