InkWorX Temporary Tattoo Ink is designed for quick application of an airbrush tattoo and can last up to a week or more depending on placement. This ink does not require powder between layers although it is recommended on the final layer to set the ink. Duration can be varied by applying a lighter or heavier coat and by applying setting powder between layers. InkWorX Temporary Tattoo Ink is waterproof and can last up to a week depending on placement and can be removed with alcohol or baby oil. Alcohol clean up is required for equipment. We manufacture our own temporary tattoo ink base from FDA approved ingredients and use only cosmetic grade dyes and pigments. Our products DO NOT contain PPD "Black Henna"