You put a lot of thought into what you take. But knowing which supplements actually meet your standards for quality takes more than recognizing the ingredients on the label.

Knowing what to look for, what to question, and what proof to expect helps you make more informed decisions about what deserves a place in your stack.

Start with these four questions, then read our full guide to learn how to evaluate the answers for any supplement, including ours.

4 Questions To Ask Of
Every Supplement On Your Shelf

Has it been tested?

Look for independent certifications like NSF Certified for Sport® or Informed Sport.

Is there enough in there to matter?

Check whether the dose aligns with the amount supported by research for the intended benefit.

What else is in the formula?

Quality extends beyond the active ingredients. Look for an intentional formula without unnecessary extras.

What form is it in?

Specific forms of ingredients can affect absorption, tolerability, and how an ingredient functions.