NAD+ (nicotinamide adenine dinucleotide) has become a popular anti-ageing trend, with some people paying for NAD+ “drips” and others taking NAD+ supplements. Two outlets report that the idea is widely promoted in wellness settings and among celebrities, but there is disagreement among doctors about whether NAD+ can genuinely slow ageing in humans. The articles describe NAD+ as a molecule involved in cellular processes and note that claims of anti-ageing effects are based largely on limited evidence rather than clear, large-scale clinical proof. While proponents argue that boosting NAD+ may improve aspects of health tied to ageing, critics caution that the strength of the scientific evidence is not settled and that benefits, if any, are not established. The reporting highlights uncertainty over how NAD+ interventions work in real-world use, including questions about effectiveness and safety at commercially marketed doses and forms (such as intravenous infusions versus oral supplements).