Featherweight Cole Province said he was “definitely guilty” after testing positive for Methasterone metabolite following his unanimous decision victory over Fredson Paixao at WEC 42 on Aug. 9.

The Nevada State Athletic Commission announced Monday that the two-time WEC veteran had failed a test for the banned substance. Province faces a suspension and/or fine.

The former University of Central Okalahoma wrestling star and NCAA Div. II champion admitted that he ingested an over-the-counter supplement after weighing in for his bout. He was apologetic for making a decision he called “dumb” and a “mistake.”

“I wasn’t trying to get any super-human strength or anything like that, I just wanted to get some extra water into my muscles,” Province told Sherdog.com.

Province, 28, is convinced the positive test resulted from his use of the supplement SOS 500 from Double Dragon Pharmaceuticals.

The product’s Website carries a warning that states, "If you are a professional or amateur athlete subject to performance enhancing substance testing, do not use this product unless cleared by your sanctioning body as it may cause a false reactive result for a urine or blood drug test."

“I didn’t know it was banned but, still, with that said, I am responsible,” said Province. "I should have checked into it but I just want to make it clear that I took an over-the-counter supplement, not steroids.”

Province (6-1) will likely face a suspension and have his victory over Paixao overturned to a no contest when he addresses the NSAC. The commission has taken a hard line in recent actions against fighters who have tested positive for performance enhancing drugs.

Karo Parisyan had his January victory over Dong Hyun Kim changed to a no contest, was fined 40 percent of his purse ($32,000) and was suspended nine months after testing positive for oxymorphone, hydromorphone, and hydrocodone, pain killers that the commission felt could help a fighter’s performance by numbing pain.

Province said he would abide by any punishment the commission hands down.