A pre-workout supplement is formulated to enhance performance during exercise by providing energy, focus, and endurance. These supplements typically contain ingredients like caffeine, which boosts alertness and reduces perceived effort, enhancing exercise intensity. Other common components include beta-alanine, which helps buffer acid buildup in muscles, delaying fatigue, and creatine, known for improving strength and power output. Nitric oxide precursors like citrulline or arginine may also be included to increase blood flow to muscles, promoting better nutrient delivery and performance. Pre-workout supplements come in various forms such as powders or capsules, often flavored for palatability. It's essential to choose a supplement with ingredients backed by research and to follow dosage guidelines carefully. Individuals should consider their tolerance to stimulants and consult with a healthcare professional or fitness expert before starting any new supplement regimen.