Supplier analysis

PSPeptides

pspeptides.com

Confidence CoperatingReviewed 2026-08-25

RSES v1.06.6/ 10

RSES scope. RSES evaluates publicly available research-supplier documentation. It does not guarantee product identity, safety, sterility, future-lot consistency, regulatory compliance, or suitability for human use. Research-use-only labeling is not a safety finding.

RSES interpretationexploratory; independent incoming QC required

Category ratings

Documentation evidence profile

Analytical evidence4.2 / 5 · 28%

Lot traceability and sampling4.0 / 5 · 18%

Laboratory and method credibility2.0 / 5 · 14%

Contamination controls3.5 / 5 · 12%

Cross-lot consistency2.5 / 5 · 8%

Corporate transparency3.0 / 5 · 7%

Catalog accuracy2.5 / 5 · 5%

Corrective-action record1.5 / 5 · 4%

Community signal2.5 / 5 · 4%

Evidence sources

Documentation reviewed

[Third-party source signal]

PepEvolution profile

Recorded status: Verified. Laboratory references: N.A. Diagnostics/other. Affiliate disclosure recorded; retained as a third-party source signal only.

Open evidence source

Review facts

Review date: 2026-08-25
Review status: reviewed
Confidence: C
Operating status: operating
Entity classification: RUO vendor; not verified 503A/503B

Key flags

Public library covers many products and multiple dated batches
Reviewed reports include HPLC-UV purity, LC-MS identity and net content with lot IDs
Separate endotoxin and heavy-metal reports are available for reviewed batches
No sterility or microbial panel observed
North American Diagnostics operates a verification site but no ISO/IEC 17025 accreditation scope was found
PSPeptides nevertheless describes every certificate as coming from an accredited laboratory
Refund policy sets an unusually low purity-failure threshold of below 80%
No blinded chain-of-custody sampling program or robust independent cross-lot dataset was found
PepEvolution affiliate relationship disclosed

Applied score caps

No score caps were applied in this review.