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Trusted Health Reviews · July 2026
Supplement Label Guide: Reading the Facts Panel in 2026
We explain how a Supplement Facts panel works: serving size, individual doses, proprietary blends, ingredient forms, and what a cGMP statement does and doesn't mean.
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In briefChecked October 2026
Five things deserve a look on any label. One is serving size, meaning how many capsules make a dose. Two is each ingredient's own amount, as opposed to one combined proprietary blend figure. Three is the exact form or branded extract. Four is the "Other Ingredients" list, where allergens and animal-derived capsules show up. Five is whether the doses match those used in published studies. A cGMP statement only means the maker says it follows FDA manufacturing rules. It is not FDA approval.
What the Supplement Facts Panel Shows
Every US dietary supplement has to carry a Supplement Facts panel with the serving size and the dietary ingredients. Read the serving size at the top first. Some products show big numbers that apply only if you take four or more capsules at once, and some permit one or two servings daily, which doubles every amount.
Why Proprietary Blends Are a Problem
A proprietary blend gives one total amount for a group of ingredients, such as "Testosterone Support Complex 850 mg". Blends are common and legal. They also conceal how much of each ingredient you're getting, so you can't hold the doses up against research. In our reviews, we count full dose disclosure as a plus.
Why the Form of an Ingredient Counts
"Ashwagandha root extract" compared with "KSM-66 ashwagandha" — KSM-66 is a branded root extract standardized to 5% withanolides, and it has its own small trials. Findings for one extract don't automatically carry over to another.
"Citicoline" compared with "Cognizin citicoline" — Cognizin is a branded citicoline backed by a few small trials, mostly supported by its maker.
"Resveratrol" compared with "trans-resveratrol" — trans-resveratrol is the form used most in research and in supplements. Look at the amount per serving.
Mineral forms — magnesium oxide, for instance, is absorbed less completely than citrate or aspartate.
Other Ingredients and Claims About Manufacturing
The "Other Ingredients" line names the capsule material (gelatin or vegetable cellulose), fillers, colors and possible allergens like fish or soy. When a label says "cGMP" or "made in a GMP facility," the company is saying it follows the FDA's manufacturing rules for supplements. Every US maker is legally required to do that. The statement is not FDA approval of the product or what it claims.
Look at the serving size, then each ingredient's own amount (not buried in a proprietary blend). Check the exact form or branded extract and the other ingredients for allergens. Finally, see whether the doses match those from published studies.
It's one combined amount covering several ingredients, with no individual doses. It's legal, but you can't tell whether any ingredient is present at a useful amount.
Extracts and forms of the same plant or nutrient can differ in standardization and absorption. Results for one branded extract don't automatically apply to the rest.
A serving is the amount treated as one dose, and it's often several capsules. Every amount on the panel is per serving, so work out how many capsules that is and how many servings a day the directions allow.
Scan the other ingredients for allergens (fish, soy or gluten, for example), capsules made from animal products if you avoid them, and any colors or additives you'd rather skip. A label with fewer unneeded extras is easier to judge.
Disclaimer: This page is for information only. These are dietary supplements. Not evaluated by FDA. Not intended to diagnose, treat, cure or prevent disease. Results differ between people. Read the full disclaimer
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