Quality verification guide
Batch testing and lot numbers: what a COA can miss
Batch-tested sounds authoritative right up to the moment you ask what was tested. A lot number and certificate of analysis (COA) help only when the report names the tests, limits, and sample.
The quick read
- USADA recommends third-party-certified products and recognizes NSF Certified for Sport as best suited to reduce athlete supplement risk. USADA Supplement Connect
- NutriScore treats a lot-level report as more useful than a generic testing statement because it can expose scope and timing.
- NutriScore does not treat a bare tested claim as evidence of lot-to-lot consistency.
- Batch transparency still depends on ingredient and dose transparency to mean anything. FDA dietary supplement labeling guide FDA supplement claim substantiation guidance
What the evidence says
Bottom line
NutriScore's three checks are a specific lot, specific tests, and reachable results.
This editorial checklist requires repeatable manufacturing and testing detail beyond a badge.
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NutriScore may earn a commission if you buy through these links. Every button opens the Nature's Body supplement collection. Amounts and uses match the bottles, pouches, and page facts, checked October 23, 2026. Affiliate disclosure.
COA VerifiedZero SugarNature's Body Creatine Monohydrate Gummies
The pouch prints 90 gummies (315 g). The product page lists mixed-berry, sugar-free, xylitol-sweetened pectin gummies supplying at least 1 g creatine monohydrate per gummy (3 g per 3-gummy serving, 30 servings), backed by a published ACS Laboratories Australia Certificate of Analysis (Job ACS2645381, Lot L# 260103, reported February 16, 2026) assaying 1.1 g creatine monohydrate per gummy (3.3 g per serving).
TGA ListedNature's Body CellVive NMN 250 mg
The amber glass bottle prints 60 vegan capsules, NAD+ Precursor, Nicotinamide Mononucleotide (CellVive NMN) 250 mg, and Australian TGA listing AUST L 527395. The side panel states third-party lab tested, BPA free, and Australian made, with directions for adults to take 1 to 2 capsules daily with water (up to 500 mg daily for no more than 12 weeks; not for use in pregnancy or lactation).
What to ask for before trusting batch language
NutriScore asks what was tested, against which limits, and in which sample before treating a batch claim as informative.
A batch claim should also line up with the label claims and whatever certification the brand already advertises. FDA supplement claim substantiation guidance USADA Supplement Connect NSF certified dietary supplements
Passing and failing versions
Under NutriScore's editorial standard, a label clears the quality-transparency bar when its batch language is precise and connected to the ingredient and dose disclosure.
Under the same standard, a stack of badges with no lot context, test method, or checkable scope fails.
What to check on the label
Measured what
Verify whether the COA or testing claim states what was actually measured.
Batch context
Prefer labels that give lot numbers, a date range, and the result type.
Consistency
Cross-check the batch language against the ingredient list and dose claims.
Featured in this guide
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Sources
- FDA dietary supplement labeling guide: https://www.fda.gov/food/dietary-supplements-guidance-documents-regulatory-information/dietary-supplement-labeling-guide-chapter-iv-nutrition-labeling
- FDA supplement claim substantiation guidance: https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-substantiation-dietary-supplement-claims-made-under-section-403r-6-federal-food
- USADA Supplement Connect: https://www.usada.org/substances/supplement-connect/
- NSF certified dietary supplements: https://www.nsf.org/consumer-resources/articles/supplement-vitamin-certification
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How this article was made
NutriScore has not commissioned independent clinical review of this article.
Read the editorial policy and scoring methodology. Sources favor primary canon, regulators, product labels, and peer-reviewed research; reputable secondary reporting is identified when used.
Corrections: send corrections or updated label/source evidence to support@nutriscore.fit or use the contact page.
Sources: 4 entries, primary canon plus reputable secondary sources with inline acknowledgment, last reviewed 2026-09-01.
For research and educational purposes only. Not medical advice.