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Description
- MULTI-ACTION PRE-WORKOUT FORMULA: Amplify every stage of your workout with Tri-Phase Technology to power mental stimulation, physical performance, and long-lasting endurance
- POWER MENTAL STIMULATION: GNC AMP Tri-Phase pre-workout gets you in the zone with an immediate boost from caffeine anhydrous and keeps it going with sustained-release caffeine from Xtenergy P2 Coffee Bean Extract*.
- FUEL MUSCLE ENERGETICS: Push high-intensity stages of your workout even harder with PeakATP for muscle energetics, CarnoSyn beta-alanine to increase carnosine levels, a critical muscle fatigue controlling factor, and CON-CRET creatine HCL for cellular energy support.
- ENHANCE PHYSICAL ENDURANCE: Take on longer and more challenging workouts with FitNox to support long-lasting physical endurance and Nitrosigine which has been clinically studied to support arginine levels.
- BANNED SUBSTANCE TESTED PRE-WORKOUT: Compete with confidence knowing GNC AMP Tri-Phase is tested for over 285 banned substances.