Most of the useful information on a supplement is in one small box: the Supplement Facts panel. Here's how to read it in about thirty seconds.
1. Find the serving size — and how many servings you actually take
Everything on the panel is listed per serving. A tub might advertise "5,000 mg" on the front, but if the serving size is two scoops and you only take one, you're getting half of that. Always check "Servings Per Container" against the price to work out the real cost per day.
2. Compare each active to its studied dose
An ingredient only "works" at the dose studied in humans. Beta-alanine, for example, is studied at about 3.2 g per day; a pre-workout listing 1.6 g is at half the studied amount, no matter how prominent it is on the label. We grade in bands: 85%+ of the studied dose counts as fully dosed (label rounding shouldn't fail a formula), 70–84% is "close" — just under but still meaningful — and only below 70% is a real underdose that caps the product's grade. Our Ingredient Guide lists the studied dose and source for every common active so you can check.
3. Watch the form, not just the number
"400 mg magnesium glycinate" is not 400 mg of magnesium — glycinate is a bonded form, and only a fraction of that weight is elemental magnesium. Minerals should be read as their elemental amount (the % Daily Value is a good tell). The same trap applies to "citrulline malate" and other bonded forms.
4. Note what's in "Other Ingredients"
Fillers, flow agents and sweeteners live here. They're usually harmless, but a very short active list padded by a long "other" list is a sign you're paying mostly for bulking agents.
None of this requires a chemistry background — just the habit of comparing the label number to a studied dose. That comparison is the entire basis of our Formula grade.
Educational only — not medical advice. Talk to a clinician before changing what you take.