There are three basic skin types: dry, oily, and a combination of both dry and oily. Prior to prosthetic application, each of these needs to be addressed in pretty much the same manner, because what we are doing is preparing the skin to accept adhesive so that it will not adversely affect the appliance's ability to stay put.
Usually all that needs to be done is to apply a mild skin cleanser and astringent. Make sure that your model arrives wearing no makeup; any existing makeup must be removed completely and then the skin cleansed, or the adhesives will not work properly. It is also important that your model has no open sores where you will be applying prosthetics or any makeup, for that matter. You would think that this is so obvious that I wouldn't need to mention it. Wrong.!l once had an extra show up on set for bodypaint makeup with a festering open infection the size of a tennis ball on his shoulder. It was amazing . .. and disgusting. Needless to say, Iimmediately went and got the first AD, who sent him straight to the hospital! Some people