Performance Simplified Energy Focus Endurance Dietary Supplement Stimulates Calorie Burning Prolab Quality Assurance Prolab Advanced Caffeine is a proprietary blend of natural caffeine sources that help to stimulate a surge of adrenaline, intensify mental focus, and boost energy levels to ignite your workouts. Prolab Advanced Caffeine is not just a great pre-workout boost, it helps stimulate calorie burning too. Whether you want to feel the rush at the gym, be extra productive at work, or stimulate your metabolism Prolab Advanced Caffeine can help.* You do your part. We'll do ours. Dynamic blend of CarnoSyn beta alanine and the amino acid L-Histidine, designed to delay muscle fatigue. Beta alanine floods the muscles with the specialized amino acid carnosine to work as a buffer against lactic acid building helping you to train at a higher intensity for a longer period of time before fatigue sets in.* You do your part. We'll do ours. *This product is to be used in conjunction with a healthy diet and exercise regimen.