Background: Social media platforms like Instagram, Facebook, and YouTube have become integral in influencing consumer behavior, particularly among younger demographics. Social media influencers, especially those in the health and wellness niche, play a key role in promoting products like dietary supplements. However, concerns about the authenticity of health claims, potential side effects, and the ethical implications of influencer marketing persist. Aims and Objectives: The study aimed to explore the impact of social media influencers on young people’s perceptions and purchasing behavior for health supplements. Key objectives included evaluating the reliability of social media as a promotional medium and assessing the authenticity of supplements marketed to youngsters. Materials and Methods: A cross-sectional study was conducted over six months with 200 participants aged 18–40 who regularly consume health supplements. Data was collected through online surveys using Google Forms. Inclusion criteria were individuals who use health supplements and were willing to participate, while non-consumers and unwilling participants were excluded. Results: The study revealed that 59.7% of respondents found influencers on Instagram and TikTok to be primary promoters of health supplements. While 41.1% admitted influencers' recommendations influenced their purchases, 56.5% preferred consulting healthcare professionals before buying. Concerns such as misleading claims (49.5%) and supplement safety risks like vitamin overdoses (62.4%) were prevalent. Many favored plant-based supplements (51.3%) and sought third-party certifications (56%) for quality assurance. Conclusion: Social media influencers effectively promote health supplements but must prioritize transparency and ethical marketing practices. Young consumers value authenticity, preferring medical guidance and verified product claims. Influencer marketing’s success hinges on fostering trust and informed decision-making