OTC supplement regulations define what products qualify as dietary supplements sold over the counter, and set expectations for labeling, safety, and consumer accountability. This guide focuses on the key elements of labeling, safety, and how to choose trusted products within the framework of otc supplement regulations. By understanding who regulates these products and what rules apply, you can spot what is legally compliant and learn what to look for when shopping. Labeling plays a central role in otc supplement regulations. Labels typically include a clear product identity, net quantity, and a Supplement Facts panel that lists each ingredient and the amount per serving. Additional information such as directions for use, safety warnings, a list of other ingredients, and the name and address of the responsible manufacturer or distributor must appear on the label. Labels may also include lot or batch numbers and an expiration date where applicable. Reading the label carefully helps you understand what is in the product and how to use it in a way that aligns with the regulatory requirements. Safety and manufacturing are also guided by otc supplement regulations. Manufacturers are expected to follow good manufacturing practices (GMPs) to ensure identity, purity, strength, and composition. In many jurisdictions, regulators do not require premarket approval for dietary supplements, placing responsibility on manufacturers and distributors to ensure accuracy and safety. Regulators can take enforcement actions if problems are identified, and post-market systems exist for reporting adverse events so that safety signals can be addressed in a timely manner. Choosing trusted products within the framework of otc supplement regulations involves looking for transparency and independent verification. Check that the product identifies the responsible company, includes a lot number and expiration date, and has labeling that matches what is stated. Third-party certifications from organizations such as USP or NSF can provide independent verification of labeling accuracy and quality criteria. While certifications are not a substitute for professional advice, they can help you assess reliability within the otc supplement regulations framework.