Black Blood Caf+ 300 g by BioTech USA is a pre-workout supplement designed to provide energy and focus during exercise sessions. With a high caffeine dose (400 mg per 10 g, equivalent to 2 scoops), this product stimulates the central nervous system and enhances physical performance. In addition to caffeine, its formula contains L-arginine, beta-alanine, and L-citrulline, ingredients that support nitric oxide production and fatigue reduction. Enriched with magnesium, niacin, and vitamin B6, Black Blood Caf+ contributes to normal energy metabolism. It contains no creatine or added sugars, thanks to sweeteners like stevia. The presentation is in a 300 g container, offering 30 doses of 10 g each. As a precaution, it's not recommended for children, pregnant women, nursing mothers, caffeine-sensitive individuals, or those with heart problems.