As is true with one other eastern European country AAS products, Omnadren is said to be manufactured with less concern for impurities. (You should see some of this stuff under a microscope. You would swear the credo for some manufacturing was “After we pee in it we are done”) For this reason, many Omnadren users experienced harsh acne (including small rash like pimples on their arms, chest, back, face, and legs). I have known a couple users who report injection site abscess problems. Surgery will most likely be needed to remove these nasty pus pockets.