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. In this case you are still going to use the alcohol but for airbrush tattoos it is to get rid of the oil on the skin and not to sanitize an area for a needle. The prep work that you do will be determined by what type of surface you will be airbrushing. The prep work to the surface will ensure that the paint sticks to the surface and that nothing is interfering with the airbrushed design. For airbrushing t-shirts, sweatshirts, denim and other natural fibers you first need to wash the material. Depending on which brand of acrylic paint that you go with, you may need to thin it down so that it flows freely through the airbrush. Also some acrylic paints require that they be heat set if used on clothing. You can heat set by placing a protect cloth between the design and the iron and ironing the design or you can turn the material inside out and place in the dryer on high heat. When it comes to any part of your actual airbrush equipment such as the airbrush and its parts as well as the compressor make sure to go with name brand. Do not use any knock offs a these will cost you more money and lots of headaches in the long run. You get what you pay for and when it comes to airbrush art you need to go with names that you can trust. Depending on the type of airbrush art you are doing will determine the type of airbrush that you need. When doing airbrush art on nails go with either the Iwata HP-A or the Iwata HP-B. These are great for airbrushing nails. Even if you do not go with the Iwata though remember to always go with named brand and never use any knockoff airbrushes. Also the airbrush paint will get them wet and they can start to tear. You will need to keep the original design so that you can refer back to it. After you have made copies of your traced design start cutting out the areas that you need to cut out. Then place the home made stencil onto your project and begin to airbrush your project.