The powder helps to keep the tattoo from fading. The 70 percent alcohol is to clean the airbrush gun and glass bottles with after you are done. Airbrushed art used to create tattoos will last for 7 days on the norm. Now if you have extremely oily skin it could start to fade in a couple of days. If you have dry skin it could last past the 7 days. Usually this will be sold as airbrush body paint or airbrush temporary tattoo ink. These are the only types of airbrush paints that are safe to use on the human skin. These paints will have a hard time staying on skin that is oily. A tattoo artist will rub alcohol on a person's skin to kill clean and kill germs prior to beginning to start a tattoo. Why You Should Learn Micro Airbrush Art Micro Airbrushing is a valuable skill for all airbrush artists. Being able to do micro airbrushing will allow for the artist to create a more realistic and more in depth detail on all small areas of their airbrush design. It is in these small areas that a lot of artist miss the chance to really define the details because they are unable to fully create the detailed area. When you are feeling the creative block coming on then start looking around you. Anything can be a basis for inspiration, especially if you change your scenery and look around your new surroundings with open eyes. Cooped up in a studio too long, then go out to the park and open your eyes to everything that you see. In their starter kit they include 2 single action ABA airbrushes, 2 hoses, 9 glass airbrush bottles, a 2 outlet air manifold, 7 60ml airbrush tattoo ink in red, blue ,white, yellow violet, fuchsia and green and the kit includes a 120ml of black airbrush tattoo ink. The starter kit also give you 50 Vynalaser stencils that can be reused over and over again. Skin should be cleaned with rubbing alcohol to remove any oils from the skin. The skin's own natural oils will prevent the airbrush paint from successfully sticking to the skin. This will cause the airbrush art tattoo to come off to soon. The use of talc powder after the design has dried will help to keep oil from building back up and thus still ruining the airbrushed tattoo.