QUALITY & TESTING
What 'tested' actually means at Stellar.
Every supplement company says 'third-party tested.' Few publish the lab, the assay set, or the certificate. Quality at Stellar means a documented chain from formula to lot, with each link inspectable.
FOUR ASSAYS ON EVERY LOT
What gets tested before a batch is released.
The minimum verification set. Additional assays are added per ingredient where the literature supports them.
01 · HEAVY METALS
Heavy metal panel.
Arsenic, lead, mercury, cadmium — analyzed against published safety thresholds. Out-of-spec lots are held.
02 · MICROBIAL
Microbial screen.
Total aerobic count, yeast/mold, coliforms, E. coli, salmonella. Each lot is screened before release.
03 · IDENTITY
Ingredient identity.
Each declared active is identity-tested — confirming the ingredient on the panel is the ingredient in the bottle.
04 · POTENCY
Active standardization.
Standardized actives are quantified against the dose on the panel. Out-of-spec potency triggers a hold.
THE PRINCIPLE
WHY VERIFICATION IS OUTSIDE THE BRAND
The testing layer is operationally separate from Stellar — that's where verification actually lives.
The ISO/IEC 17025 accredited laboratory that issues every Stellar certificate of analysis is a third party. It is not Stellar Health Labs, not evidence review, not any related entity.
That's by design. A brand cannot verify itself. The lab issues the certificate, evidence review audits it against the methodology, and Stellar can only release a lot once both pass. No single entity can short-circuit the chain.
Every customer can request the COA for any unit they receive — referenced by lot number on the bottle.
CERTIFICATION POLICY
Marks are real or they're not used.
Stellar uses only certifications backed by active, on-file authorization with the issuing body. Marketing-only certification language does not appear on Stellar packaging or pages.
01 · NSF LABORATORY TESTED
NSF Laboratories.
Products are tested by NSF Laboratories, an ISO/IEC 17025 accredited lab, to confirm contents match the label. This is third-party laboratory testing — not NSF Certification — and we do not display the NSF Mark.
02 · THIRD-PARTY LAB TESTED
Third-party laboratory.
Every batch is tested by an independent ISO/IEC 17025 accredited laboratory for identity, potency, and contaminants.
COA LIBRARY
Per-batch certificates of analysis.
Searchable by SKU and lot number. Each batch's COA is published as a PDF. The lab partner's name and accreditation are documented per entry. Evidence verified through The Clinical Index.
| SKU | Batch | Manufactured | Lab partner | COA |
|---|---|---|---|---|
|
COA LIBRARY PENDING The first batch's Certificate of Analysis lands here when verification completes. The library is searchable by SKU and lot number. |
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VERIFY
The full verification chain is documented.
Read how every Stellar batch moves from lab to release, what each assay covers, and how customers can look up any COA by lot.