ConsumerLab (CL Seal)
Retail-sampled quality testing; a paid publisher, not a regulator
Summary
ConsumerLab's Quality Certification Program tests products the same way as its Product Reviews, without accepting samples directly from the manufacturer. [1]
What it tests
The manufacturer pays a testing fee and the results are proprietary to the manufacturer; products that pass can be listed and can carry the CL Seal under a license agreement. [1]
What it doesn't cover
Test results are proprietary to the manufacturer and only passing products may be listed, so a missing listing doesn't tell you why. [1]
NIH ODS lists ConsumerLab among quality seals and notes these seals don't guarantee safety or effectiveness. [2]
How to verify a product
Look up on their siteConsumerLab says visitors can view a current list of CL-Certified products on its website. [1]
Sources
- ConsumerLab.com — Quality Certification Program retrieved 2026-10-27
- NIH Office of Dietary Supplements — Dietary Supplements: What You Need to Know retrieved 2026-10-27