The basics Sculpt-it is a Bio-medical grade silicone modeling and casting compound curing to a soft and stretchy elastomer. Each kit contains a Part A and a Part B. For example, the 1 oz kit contains 1 oz Part A and 1 oz Part B. The benefits Sculpt-It is very flexible and buildable, can be formed directly on the skin or cast in a mold. The uses It is used to create 3-D effects such as scars, cuts, moles etc. on the skin. It cures rapidly and requires no heat to cure. The bottom line More durable than any gelatin, and will not break down from heat or perspiration.