None of the ingredients used in our personalized protein powder blends are on the NCAA banned substance list.
Some blends may contain a single serving of non-GMO green tea extract, which contains a small amount of naturally-occurring caffeine (5 mg, approximately 1/20th of a cup of coffee). This, however, is 100 times below the acceptable limit for caffeine in NCAA athletes. As long as you don't consume 100 scoops of protein within 3 hours of a competition, you will be fine.
Always consult with your physician before using any dietary supplement.