Vendor audit record

Amino Amigos

Website aminoamigos.com

Audit slug amino-amigos Audited Auditor agent-research-A

Grade DAvoid — thin evidence

Recent activity: Zero COAs in the last 90 days; latest publication was 417 days ago (~1.1 years stale). Score: D. Score: D (revised from B under recent-cadence-weighted rubric). Amino Amigos publishes the strongest public COA program of the three vendors audited: a dedicated /certificate-of-analysis/ page indexing ~50 PDFs across ~20 distinct compounds, spanning 2023-05 to 2025-03. Each COA is from MZ Biolabs (Tucson, AZ) — a real DEA-licensed third-party lab whose founder Ken Pendarvis signs the documents and is independently verifiable via crunchbase, AZ Corporation Commission, and the lab's own site. Sampled PDFs (Tirzepatide TF24 99.76%, Retatrutide RB25S1 99.90%) include HPLC chromatograms, mass-spec identity confirmation, and chemist signatures — substantively richer documentation than EQNO's COAs. Held back from A by: (1) most recent visible COA is 2025-03-18, ~14 months before audit, indicating either the public index has stalled or per-batch publication has slowed (knocks recency); (2) no vendor-side or lab-side portal lookup — re-verification depends on trusting that the PDF on the vendor's site was actually issued by MZ Biolabs (no QR or hash); (3) vendor product pages use placeholder images rather than real labeled vials, so authenticity-of-vial-branding is null; (4) the MZ Biolabs COA template is shared across many other peptide vendors (NuScience Peptides, Hydro Research Peptides, Astro Peptides, Peptide Crafters, etc.) — this is flagged as 'template-shared' per the rubric, BUT in this case it reflects a legitimate shared independent lab serving multiple clients (each COA has correct client name and product-specific data), NOT the Chinese-supplier-reselling pattern the rubric is most concerned with. Independent purity testing on Finnrick (37 samples, A-to-E ratings, January-July 2025) corroborates that real product is being shipped, though with inconsistent quality across the line. Net: this is the cleanest of the three audited vendors but the audit cannot confirm A-grade because of recency staleness and the absence of any portal-based COA verification.

The take

A real third-party COA program that has gone quiet for over a year is no longer a current program.

Amino Amigos built the most substantive COA program of the three vendors demoted in this audit cycle, and then it stopped. The vendor's public certificate-of-analysis page indexes roughly 50 PDFs spanning May 2023 to March 2025, all issued by MZ Biolabs in Tucson, Arizona, a real DEA-licensed third-party lab whose founder Ken Pendarvis (ChE) physically signs each report. Sampled documents are technically rich, including HPLC-UV chromatograms and HPLC-MS identity confirmation, with measured purities like 99.76 percent on Tirzepatide lot TF24 and 99.90 percent on Retatrutide lot RB25S1. That is genuine work. The problem is the calendar. The most recent visible COA is dated March 18, 2025, which is 417 days before this audit. Zero COAs have appeared in the last 90 days. Compounding the recency gap, MZ Biolabs offers no QR or portal verification on its COAs, so re-checking a document means emailing the lab. A vendor with this much past discipline can climb back to a B or A by simply resuming publication and adding portal-verifiable lab work.

  • Strength. Roughly 50 batch-level COAs from MZ Biolabs, a DEA-licensed Tucson lab whose founder personally signs each chromatogram-backed report.
  • Concern. The latest COA is 417 days old and the lab offers no portal or QR lookup, so the entire record now lives or dies on the vendor continuing to publish.

Key evidence: https://aminoamigos.com/certificate-of-analysis/

COA program

Public COA page Yes
COA index URL https://aminoamigos.com/certificate-of-analysis/
Total COAs found 50
Date range 2023-05-15 → 2025-03-18
Cadence 0 COAs in the last 90 days — latest publication was 417 days before audit.
"Every batch" claimed? Yes
Volume vs. claim Site claims 'rigorously tested research peptides' and 'Third Party Tested.' COA index lists ~50 distinct PDFs spanning May 2023 to March 2025 — multiple lots per product (e.g., Tirzepatide alone has ~17 distinct lot/date combinations), with batch numbers varying by date. Volume is consistent with frequent batch-level testing, though gaps exist (no COAs after March 2025 visible at audit date 2026-05-09 — a ~14-month staleness gap that knocks recency down).

Issuing labs & verifiability

  • MZ Biolabs Unverifiable — Real third-party lab at 1635 E 18th St (later 2102 N Country Club Rd, Suite C), Tucson AZ 85716/85719. Founder Ken Pendarvis (ChE, Analytical Chemist) signs each COA. Lab is DEA-licensed (RP0584676), verifiable via mzbiolabs.com, AZ Corporation Commission filing, and Crunchbase profile for Pendarvis. Sampled COAs (Tirzepatide TF24 lot 2024-05-17 99.76% purity, Retatrutide RB25S1 2025-03-10 99.90% purity) include HPLC-UV chromatograms and HPLC-MS spectra with measured-vs-expected monoisotopic mass and Pendarvis' physical signature. No public lab-side QR/portal lookup is present on the COAs to independently confirm the lab issued them — verification is via lab existence and chemist identity rather than a portal.

Authenticity

Bottle images match brand? Unknown / unable to verify
Bottle evidence Sampled COAs (PDF) show HPLC chromatograms with an 'AMINO AMIGOS' brand watermark behind the chart and the client field set to 'Amino Amigos' / 'AMINO AMIGOS' — but no vial photographs are included on the COAs themselves. Product pages on aminoamigos.com use generic xstore-placeholder images rather than real product photography, so a vial-vs-COA-vs-website branding match cannot be performed. This is a gap, but not affirmative evidence of mismatch.
COA template shared with other vendors? Yes

Red flags

template-shared

Domain history

Site accessible at audit time Yes
First Wayback snapshot 2023-05-20
Approximate domain age ~3 years (since May 2023)

Evidence trail

Note: this audit reflects the site as of . Re-audit dates and updated links are added as they are completed. Methodology: Read the rubric. Disputes: audit@realpeptidescores.com.