Obviously you mean lubricants! I'm uncut so I don't use any for masturbation, but I know KY Jelly is a popular choice available at any drugstore. Some people I've heard use hand lotion, vaseline, spit, baby oil or any number of things... There are certain ones intended mainly for sexual pleasure, but you usually need to get them from an adult sex store, and I dunno about you but I can't do that. As for sex, yes I have but i'm not sure what relevance that has to this conversation...
*Proud to be ME*