Is your supplement reliable? That question centers on supplement reliability—the degree to which a product offers consistent quality that you can verify before you buy. You can quickly gauge reliability by focusing on three pillars: labeling, third-party testing, and the brand’s trustworthiness. Keeping these elements in view helps you compare products without getting lost in marketing. Start with the label. A reliable supplement should clearly list all ingredients and amounts per serving, plus the official product name and the manufacturer’s contact information. Look for the country of origin, a lot or batch number, and an expiration date. Storage instructions and recommended usage details should be present as well. Be cautious of vague language such as “proprietary blends” without transparency, and ensure the label details align with any COAs or testing reports you review. Third-party testing is a strong signal of supplement reliability. Logos from independent programs like USP or NSF International indicate external verification, though you should verify the specific batch tested. Ask for or download a current certificate of analysis (COA) that corresponds to the exact lot you’re considering. A robust COA should document identity and potency for the listed ingredients and provide results for contaminants, with the report dated and traceable to the batch. Brand transparency matters, too. Favor brands that disclose sourcing information, manufacturing practices, and GMP compliance. Check whether the brand has a public recall history or regulatory actions and review their responsiveness to inquiries. Reading official recall databases and regulatory notices can complement consumer reviews. By prioritizing these aspects, you strengthen supplement reliability before you buy.