Primis summary: Compound Z is an ultra-high-stimulant pre-workout built for experienced stimulant users, with 505 mg caffeine stated per serving.Best for: experienced pre-workout users specifically seeking a very high-stimulant training formula. 505 mg caffeine stated per serving Stimulant-led performance positioning Multiple flavour options High-caffeine warning: this is not a beginner or low-stimulant product. Check the full label before use, do not combine with other caffeine/stimulant products, and avoid use close to bedtime. People who are pregnant, breastfeeding, caffeine-sensitive, taking medication or managing a medical condition should seek professional advice before use.Compare the full pre-workout range.