Might want to think twice about your creatine too...
For that matter you may want to question all your supplements. No matter how wonderful you think your sup company is, chances are they are getting their bulk ingredients from China, which has all but taken over the market, and things have gone from bad to worse over there. The manufacturing of bulk and supplement ingredients is atrociously bad in terms of quality and contamination.
So tread carefully, unless you think anti-freeze is a supplement