James wrote:

> They give some protection against heat but I use them specially when
> cutting onions or garlic. Much easier than trying to get the smell
> off your hands.

Nope, not generally. I do use them when scraping the innards out of
jalapenos to get them ready for stuffing, or when handling habaneros.

A brief scrub with benzoyl peroxide acnes soap will get rid of just
about any kind of lingering smell or stain on the hands, including,
unfortunately, mehndi.