A reliable label makes it possible to identify what is in the product and how much. Red flags are usually about opacity, exaggerated promises or missing information—not a single ingredient name.
A testing or certification seal can describe a particular program, but the meaning depends on what was tested, how often, and whether the exact product and batch are covered. It is not a universal guarantee of benefit.
Dietary supplements are regulated differently from prescription medicines. That distinction matters when a product uses language that sounds like proof of treatment or a government endorsement.
The Supplement Facts panel is where the actionable details live: serving size, amount per serving, ingredient names and the Daily Value column. It is more useful than the front label for comparing products.
A proprietary blend discloses a total weight and an ingredient order, and nothing else. Here is what that conceals, and how to read one anyway.
