PreSeries BULK was developed to be the best “bulking” pre-workout supplement available. The key ingredients, all backed by published scientific research, are included at clinically effective dosages and contain zero colored dyes, zero artificial sweeteners or flavors, and zero harmful additives. With 100% formula transparency and a potent Testosterone Support complex (vitamin D3, boron, and zinc), PreSeries BULK is most effective for serious athletes and bodybuilders looking to gain size and increase muscle mass. Each serving exceeds 21 grams and includes 19 active ingredients that are designed to increase nitric oxide (“pump”) and focus while working out, reduce fatigue and muscle soreness, all while enhancing overall physical performance. NOTE: PreSeries BULK contains fermented vegan BCAAs and is a vegan friendly product.