High-Stimulant Pre-Workout for Advanced Athletes Dark Labs Crack Diamond Edition is a high-intensity pre-workout supplement designed to enhance energy, focus, and stamina. Each serving delivers a powerful combination of ingredients to help you power through intense training sessions and break through performance plateaus.* Key Benefits 5000 mg L-Citrulline for intense muscle pumps* 5000 mg Beta Alanine to help reduce fatigue and improve endurance* 1000 mg L-Tyrosine for enhanced focus and mental clarity* 550 mg combined caffeine sources for long-lasting energy* Formulated to support improved blood flow and workout intensity* Suggested Use Mix 1 scoop with 8–12 oz of water and consume 20–30 minutes before your workout. Due to its potency, assess tolerance with half a scoop before using a full serving.