Short answer: ConsumerLab tests products it selects and publishes detailed reviews behind a membership. That is valuable work, but most people arrive with a narrower question: is the supplement I am holding covered by a real, published lab certificate? ScanCheck answers that free. Enter the batch number from your label and it checks the published certification record for that exact production run.
How they compare
| ScanCheck | ConsumerLab | |
|---|---|---|
| Access | Free, no account | Paid membership for full reviews |
| What you get | Published certificate match for your exact batch, with a link to verify at the source | Their own test results and reviews for selected products |
| Granularity | Per batch (production run) | Per product sample |
| Best for | Verifying the bottle in your hand | Researching product categories in depth |
What a certificate match tells you
Certification programs like Informed Sport test every batch a brand submits and publish the result against the lot number. When ScanCheck finds a match for your batch, you are looking at evidence about your actual bottle, and the result links to the certifier so you can confirm it at the source. When there is no published record, that is not proof of a problem, it is a transparency gap: the brand either does not participate in batch-level certification or has not published this run.
Use both when it matters
Deep product research and batch verification are complements, not rivals. If you rely on a supplement daily, category reviews help you choose it, and a free batch check confirms the specific bottles you keep buying are covered runs. The check takes seconds: find the lot number near the expiration date, enter it at scancheck.app, read the verdict.