Ascension Peptides
Public COA library, lot-linked product records, laboratory identification and external document cross-checking. Final numerical score withheld pending broader COA review.
Read the full review →Supplier Comparisons
Compare suppliers with clear criteria.
A dedicated hub for structured, transparent comparisons of research suppliers — focused on what can actually be verified rather than what marketing claims suggest.
Published supplier reviews
Reviews are deliberately evidence-first. A supplier can have extensive documentation without automatically receiving a strong product-quality conclusion.
Limitless Life Nootropics
Now presented as Limitless Biotech. Strong public testing claims and substantial external testing history, but mixed independent results across compounds mean a final score is still withheld.
Read the full review →American Peptides
Strong current COA infrastructure and substantial independently indexed testing coverage. Final score withheld until the underlying COA sample and policies are audited in full.
Read the full review →Pinnacle Peptide Labs
Current batch-documentation claims, product-level COA links and a defined third-party testing policy. Final score withheld pending direct review of current COA PDFs.
Read the full review →Swiss Chems
Public batch documentation and third-party testing claims, with materially mixed external results that require careful batch-level interpretation.
Read the full review →Our supplier review framework
Every full supplier profile uses the same structure so readers can compare like with like.
1. Evidence & testing
COAs, batch numbers, laboratory identity, HPLC, mass spectrometry and other analytical documentation are assessed separately.
2. Traceability
We check whether documents can be connected to a specific product and batch rather than relying on generic certificates.
3. Company transparency
Company identity, policies, research-use positioning, support and other operational information are recorded when verifiable.
4. Evidence coverage
Missing information stays visible. A supplier cannot receive a strong score simply because key questions were never answered.
5. Editorial confidence
We distinguish verified evidence, supplier-provided information, secondary records and information we could not independently establish.
6. Commercial disclosure
Affiliate relationships are disclosed separately and do not increase a supplier's editorial score.
What a full review contains
| Section | What we record |
|---|---|
| At a glance | Last checked date, evidence coverage and editorial confidence. |
| Testing | COA availability, batch specificity, laboratory identity and analytical methods. |
| Traceability | Whether evidence can be tied to a specific lot or batch. |
| Operations | Company identity, policies, research-use framing and support information. |
| Scorecard | Criterion-level scores, evidence status and documented weights. |
| Evidence log | Source, date checked and verification status for material claims. |
| Commercial relationship | Clear affiliate disclosure where applicable. |
Editorial note: Comparisons are informational. A score measures the evidence and transparency we can document; it is not a certification of product quality, safety, efficacy or suitability for human use. Missing evidence is not treated as positive evidence.