I purchased a whey protein powder for bodybuilding and mass gain. Before, I used a different brand and I had mild to sometimes, no acne. After I purchased a different brand, once or twice, I would breakout in small acne (jaw and cheeks) for about 3-4 days before it calmed down. And the breakout came again 4 days ago when I consumed the shake late at night. Do you think there is any ingredient here that might be causing this? I was thinking it was the B6.