Tag: Usp seal

With over 80,000 dietary supplements on the market, it can be challenging to know which ones are safe and effective. When you see the USP Verified seal, it answers the question, "what does USP mean on a vitamin bottle?" by indicating independent, third-party verification for quality and safety.

As of 2025, Nature Made remains the vitamin and supplement brand with the most products carrying the USP Dietary Supplement Verified Mark, confirming that for a large portion of its line, Nature Made vitamins are third-party verified. This commitment provides consumers with an extra layer of assurance about product quality and transparency.

According to a 2021 market analysis, the quality of dietary supplements can vary widely since they are not subject to the same strict regulations as drugs. Knowing how do I know if a vitamin is USP verified is essential for ensuring what's on the label is what's in the bottle.