Most makeup claims to be non-comodegenic, but some are and some aren't. The problem is that the FDA doesn't regulate cosmetics as closely as they should, with the result that makeup companies can say darn near anything they want whether it's true or not. So, when a company claims the makeup doesn't clog pores, what are we supposed to think when it clogs the top of the bottle?
Some makeup is so filled with waxes, oils, petroleum products and miscellaneous junk that it's a wonder we don't collapse in the street from lack of oxygen. Trial and error may help you find a non-pore clogging makeup. Anytime a makeup increases breakouts or blackheads, it should be abandoned and replaced. On the other hand, I just read that pores tend to clog and caused blackheads from the bottom of the pore up, not from the outer skin down. So it may all be moot. If you break out, get your money back and try something else, preferably something with fewer ingredients.
Powdered mineral makeup is the most likely candidate for leaving pores unplugged because the minerals are so fine and because there are no added oils, colors and other sticky ingredients that can clog up pores. Limiting the number of ingredients is one way to limit the potentially disastrous effects on the skin
