A tingling or itching sensation, often experienced on the face, neck, or extremities, is a reported side effect by some individuals after consuming C4 energy drinks. This physiological response is primarily attributed to the presence of beta-alanine, an amino acid commonly included in pre-workout and energy-boosting supplements. For example, an individual might feel a prickly sensation shortly after drinking a C4 energy drink, a feeling that typically subsides within a relatively short period.
The inclusion of beta-alanine in these formulations is due to its role in increasing muscle carnosine levels, which can potentially buffer lactic acid buildup during intense physical activity. This buffering action may delay muscle fatigue and improve exercise performance. Beta-alanine has been used in sports nutrition products for several years, with its potential ergogenic benefits explored in numerous studies. While harmless for most, the resulting paresthesia (the tingling sensation) can be disconcerting for some consumers unfamiliar with this effect.
