Ingredient Effective dose What it does Evidence
Caffeine 150–300mg Alertness, endurance, strength Strong
Citrulline malate 6–8g Blood flow, reduced soreness, rep performance Strong
Beta-alanine 3.2g Delays muscle fatigue (causes tingling) Moderate
Creatine monohydrate 3–5g Strength, power output Strong
Betaine anhydrous 2.5g Strength and power Moderate
Tyrosine 500–2000mg Focus under stress Moderate
Taurine 1–3g Hydration, mild endurance benefit Weak
Proprietary blends Unknown Unknown — doses hidden Avoid