Label check
Comparing an extract with a botanical powder
Keep the preparation description beside the amount. A milligram number on an extract and a milligram number on a whole-plant powder do not by themselves establish equivalence.
Part of Medicines
This check covers US labels. Start with the exact package and variant you have, then use the steps below. Explore more supplements checks.
What to look at
- Read whether the label describes an extract or powder.
- Keep the plant part and any stated extract information.
- Mark missing preparation details instead of inventing a conversion.
Read this label.
A: root powder 300 mg; B: root extract 300 mg
Illustrative excerpt · not a real productThe equal weights are not enough to conclude that the two preparations are equivalent.
Why this reading matters
Read the serving basis before the ingredient amounts. A mineral source can be named beside the nutrient; botanical plant parts and proprietary blends carry additional information that a headline number can hide. US Food and Drug Administration.
A supplement label gives ingredients and amounts, but it does not establish whether you need the product. Independent quality seals do not guarantee that a supplement is effective or safe for everyone. NIH Office of Dietary Supplements.
What the label cannot settle
This guide does not calculate an effective dose or recommend either preparation.
Put the check to work
Compare the exact words and amounts on your package with the example. If a panel is missing, a photo is unreadable or the manufacturer has not disclosed a detail, keep that detail as unknown. A different flavor, shade or formulation needs its own check.
For the full reading method, use our supplements label guide. The medicines and supplements guide adds context for your needs.
A useful next check
- What Daily Value not established means
- Reading the serving on liquid supplements
- Comparing supplements with proprietary blends
Sources read and this label example reviewed on 2026-09-23. Examples are illustrative, not product tests or clinical reviews.
Sources
- Dietary Supplement Labeling Guide: Nutrition Labeling US Food and Drug Administration · fda.gov Serving basis, source forms, botanical plant parts, blends; not historical nutrient reference values
- Dietary Supplements: What You Need to Know NIH Office of Dietary Supplements · ods.od.nih.gov Supplement labeling, quality seals, safety and effectiveness