A common side effect experienced by individuals consuming pre-workout supplements is a tingling or itching sensation, frequently localized to the face, neck, and extremities. This physiological response is primarily attributed to the presence of beta-alanine, an amino acid often included in these formulations. Beta-alanine increases the levels of carnosine in muscles, which buffers acidity during high-intensity exercise. This buffering action can lead to the sensation.
Understanding the origin of this sensation is valuable for several reasons. It allows individuals to differentiate between a harmless side effect and a potential allergic reaction. Furthermore, knowledge of the mechanism can empower consumers to make informed decisions about supplement usage and dosage. The incorporation of beta-alanine into pre-workout formulas stems from research indicating its potential to enhance muscular endurance and performance, particularly during anaerobic activities.