How to Read a Supplement Facts Label
Learn how to interpret serving size, ingredient amounts, extracts, standardization, proprietary blends and other supplement label details.
Start With Serving Size
Ingredient amounts are normally stated per serving, not necessarily per capsule. If a serving is two capsules, a 100 mg listing generally refers to the full two-capsule serving unless the label states otherwise.
Amount Per Serving and % Daily Value
Many botanical ingredients do not have an established Daily Value. The absence of a %DV does not mean an ingredient is ineffective or unsafe; it means no Daily Value has been established for that label context.
Botanical Details
For plant ingredients, look for the scientific/common name, plant part, whether the material is a powder or extract, and any standardization. A “10:1 extract” describes an extraction relationship; it does not automatically prove clinical potency.
Proprietary Blends
A proprietary blend can disclose the total blend weight without giving each ingredient amount. That makes research comparison harder. Individually disclosed amounts are generally easier to evaluate.
Other Ingredients
Capsule materials, fillers, flow agents and other non-active ingredients usually appear separately. People with allergies or dietary restrictions should check this section too.
What a Label Cannot Prove
A compliant-looking label can tell you what the product says it contains. It cannot by itself prove that the product improves memory, prevents disease or matches a clinical trial.
Sources & References
Product pages are used for seller-reported facts such as current formula, price and guarantee. They are not treated as independent proof of effectiveness.