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Methodology
Today's reports review labels and public sources. No product in this category has TPR lab data yet; lab checks come only after validation.
Phase 1 · Today
Step 1
Label Review
We document the ingredient list, amounts, warnings, certifications, and claims shown on the product label.
Step 2
Public-Source Review
We compare the label with manufacturer disclosures, regulator notices, recalls, and other public evidence.
Step 3
Evidence Summary
We publish what the available evidence supports, mark the report as label-only, and explain what remains unknown.
Phase 2 · Planned
These steps are a build-out plan, not a description of current product reports.
Step 1
Method Validation
The lab and each method must be validated before any product result is described as lab-backed.
Step 2
Retail Sampling
Future samples will be purchased from normal retail channels and logged with product, lot, and date details.
Step 3
Validated Lab Checks
Targets under validation before any lab-backed report is published.
The final list will depend on the category and validated method.
Independence pledge
We accept $0 from the brands we review.
Member-funded. No advertising. No free samples. No sponsorships. That keeps the product review independent.
Full methodology
Current label review, lab build-out, and planned reporting rules.
We review purified water labels and public sources, and clearly show the evidence behind each report.
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Products Reviewed
Label
Review Today
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Selected claims and contaminants will be checked using validated methods and method-specific reporting limits.
Step 4
Reviewed Results
Published lab-backed reports will state exactly what sample was checked, how it was checked, and what the result can prove.
In-house lab in build-out
Methodology
Current reports are based on labels and public sources. Lab checks will be added only after the in-house lab and its methods are validated; there are no TPR lab results in this category today.
At a glance
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purified water product reports reviewed from labels and public sources.
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lab-backed product reports published in this category today.
Phase 1 · Today
This is the process behind today's label-only reports. It does not verify what is inside a product.
Step 1
We document the ingredient list, amounts, warnings, certifications, and claims shown on the product label.
Step 2
We compare the label with manufacturer disclosures, regulator notices, recalls, and other public evidence.
Step 3
We publish what the available evidence supports, mark the report as label-only, and explain what remains unknown.
Phase 2 · Planned
The lab and each method must be validated first. These are planned capabilities, not current product findings.
Planned step 1
The lab and each method must be validated before any product result is described as lab-backed.
Planned step 2
Future samples will be purchased from normal retail channels and logged with product, lot, and date details.
Planned step 3
Selected claims and contaminants will be checked using validated methods and method-specific reporting limits.
Planned measurement scope
Category-relevant contaminants checked at the reporting limits of a validated method.
Measured results compared with the specific claims that the validated method can evaluate.
Selected active ingredients measured when a validated category method is available.
Product, lot, sample date, method, reporting limit, and reviewer context published with the result.
Lab build-out
These are the quality and reporting targets for the in-house lab before product results can be published.
Planned scope
Planned step 4
Published lab-backed reports will state exactly what sample was checked, how it was checked, and what the result can prove.
