The basics An oil based gel for creating dirty FX on skin and costumes. Patch test before use for suitability. The benefits Can be smeared or used in clumps dependent on the required effect. The uses Apply directly to the skin and work in until the desired effect is achieved. Suitable only for skin use, may permanently damage or stain costumes or sets. The bottom line To remove; wipe as much from the skin with a wipe. Wash from the skin or hair with a block soap or shampoo and warm water.