Wash your hands with soap and water. This will NOT remove microscopic traces of gun powder residue that can be found with laboratory examination.
Gunpowder residue can remain on a shooter's hands for up to a few hours after firing a gun, but it can be easily removed with proper handwashing techniques. Factors like the type of gun, ammunition, and frequency of shooting can also impact how long residue stays on the hands.
rubbing alcohol and nail polish remover
The man on the street got his hands on a few tons of gunpowder just in case.
To remove graffiti from your hands, read the manufacturers instructions on the container of paint that was used.
Assuming you mean gunpowder residue on the skin, any thorough cleaning, such as scrubbing with soap and water, or alcohol cleaner, would do. But there will also be burnt gunpowder burnt into the skin, and these are much less likely to be easily removed. (Powder burns.)
In many cases, chemicals from the gunpowder and from the primer will transfer to the hands and clothing of a shooter. This can be found in a lab test.
get a bath
With your hands
cannot get fingers or hands in to remove replace headlight bulbs do i need to remove other parts to do this on a 1998 Honda civic?
One ingredient of gunpowder is sulfur.
with hands and tools...