At my henna booth, I get asked all the time, "do you have white henna?" However, due to the nature of what white henna actually is I do not carry it for that type of setting.
Despite what the name suggests, white henna does NOT contain any actual henna in it. Rather, it's an adhesive body paint *used* like henna, which lasts 1-4 days depending where you get it. The hands and the fingers especially, tend to come off much faster than other parts of the body such as the forearm and thigh. Because of this, I generally only do white henna for one day type of events like weddings, proms, or photoshoots. Therefore, If you want something long lasting, such as the people who frequent my booth, you'd want to go with traditional henna which is made from the leaves of the henna plant which has a natural pigment called lawsone which adheres to the top layer of the skin, staining it for up to two weeks are reddish/brown color.
As eluded to above, white henna does not stain the skin, so once the white layer comes off it's gone completely. Additionally, it can be scrubbed off with an exfoliator at anytime. Therefore, if you want the white henna to last as long as possible, you want to avoid excess friction and exfoliation, as well as submersion in warm or hot water (i.e. doing the dishes).
**It's important to note that you want to make sure the white henna you get or use is FDA safe for skin usage--never apply regular acrylic paint which is meant for canvases on the skin as such a product can be highly aggravating and the last thing you want to do is have you or someone else break out and have a crazy allergic reaction!
If you're in the USA you can purchase white henna ("HennaGlam") from:
Henna Caravan
If you go to their website you can get the specifics on the ingredients and I do recommend to get many metal tips as they can get clogged if you let them dry in between uses without immediately rinsing them. Also, you can put the product into a cone, but I like the bottle and tip since the consistency is much thinner than regular henna paste. "HennaGlam" is the product that I used in the video I've posted below. I am not affiliated with Henna Caravan I just highly appreciate their "HennaGlam" with its safe ingredients and quality!
Please let me know if you have any questions in the comment section below!