The basics Kett Hydro Proof - Color Additives-30ml - Makeup with staying power. For professional use only. The benefits Our exclusive airbrush only formula is waterproof, smudgeproof and non-transferable on clothes. Stays on until you take it off.  The uses 2 shades of waterproof pigment for covering tattoos, freckle effects and creating dimension formulated just for airbrush use. CA1 (Dark Neutral) for shading and freckles, CA2 (Medium Ruddy Red) for neutralizing tattoos and hair stubble. The bottom line Hydro Proof sustains exposure to the elements for extended periods of time.