I bought henna powder years ago through eBay.
It works best mixed with acidic liquid, such as lemon juice. Turn it into a paste to use.
Your hair with smell… interesting… for a while after use.

I would try ebay ?

The Body Shop used to stock henna. I don’t know if they still do.

Our local Indian grocer has henna both for hair and skin.

I can’t use chemical dyes & have been dying my hair with henna for years, I get it from http://www.hennamoon.com.au , great online shop, quick delivery of henna, indigo dye (which takes out the orange) glothes & shower caps (which heat activates the henna.

Our local health shop Nature’s Works has it. I think most health shops would have it.

Yes I would have suggested health food stores also.

I have seen it on Ebay and also health food shops

It’s easy to get at ebay as well !

I have found this from one of the Indian store. Have a look there, they have plenty in stock.

Most Health stores stock Henna, I believe Lush also have it – other than that, you can get it on ebay.