category: “RPL Peptide”

Peptide Supplier Audit Checklist for International Buyers

TL;DR — The Short Answer

A structured peptide supplier audit covers six domains: facility and equipment, quality management system, analytical testing capability, documentation and traceability, personnel competence, and logistics readiness. This checklist is designed for both remote audits (Phase 1) and on-site audits (Phase 2). Each domain is scored to produce a supplier qualification rating. For remote audits, video verification of equipment and facilities is the minimum acceptable standard. For critical suppliers, an on-site visit remains the gold standard.

Key Statistics

Audit Overview

This audit protocol is structured in two phases:

Phase 1 – Remote Audit: Document review and video verification suitable for initial supplier evaluation. Completes 60-70% of total verification.

Phase 2 – On-Site Audit: Physical facility inspection for critical suppliers, long-term partners, or when remote audit findings require follow-up.

Phase 1: Remote Audit Checklist

Domain A: Facility and Manufacturing Equipment (15 points)

Domain A Score: _ / 15

Domain B: Quality Management System (15 points)

Domain B Score: _ / 15

Domain C: Analytical Testing Capability (20 points)

Domain C Score: _ / 20

Domain D: Documentation and Traceability (20 points)

Domain D Score: _ / 20

Domain E: Personnel and Technical Competence (15 points)

Domain E Score: _ / 15

Domain F: Logistics and Export Readiness (15 points)

Domain F Score: _ / 15

Remote Audit Scoring

Phase 2: On-Site Audit Checklist

For critical suppliers, an on-site audit provides definitive verification. Add these checkpoints when visiting the facility.

Additional On-Site Checkpoints

On-Site Audit Scoring

For on-site audits, the scoring thresholds are higher:

Remote Audit – Downloadable Template

Copy this template into a spreadsheet for conducting your own audits:

Remote Audit Scorecard Template

Supplier Name: _______________
Date of Audit: _______________
Auditor: ____________________

Domain A - Facility & Equipment (15 pts): ___/15
  A1 Registration scope (2): ___
  A2 SPPS synthesizers (3): ___
  A3 Prep-HPLC (3): ___
  A4 Analytical HPLC/LC-MS (3): ___
  A5 Lyophilizer (2): ___
  A6 Cold storage (2): ___

Domain B - Quality System (15 pts): ___/15
  B1 ISO certification (3): ___
  B2 SOP system (3): ___
  B3 Change control (2): ___
  B4 CAPA system (3): ___
  B5 Internal audit (2): ___
  B6 Management review (2): ___

Domain C - Analytical Testing (20 pts): ___/20
  C1 Per-batch HPLC (4): ___
  C2 Per-batch LC-MS (4): ___
  C3 Amino acid analysis (3): ___
  C4 Moisture analysis (3): ___
  C5 TFA/salt content (3): ___
  C6 Equipment calibration (3): ___

Domain D - Documentation (20 pts): ___/20
  D1 Batch-specific COA with full data (5): ___
  D2 Batch records (4): ___
  D3 Raw material traceability (4): ___
  D4 English documentation (2): ___
  D5 Export documents (3): ___
  D6 Retention samples (2): ___

Domain E - Personnel (15 pts): ___/15
  E1 English technical contact (4): ___
  E2 Chemistry team (3): ___
  E3 QC qualifications (3): ___
  E4 Technical Q&A (5): ___

Domain F - Logistics (15 pts): ___/15
  F1 Cold-chain shipping (4): ___
  F2 Courier accounts (3): ___
  F3 Customs experience (3): ___
  F4 Export history (3): ___
  F5 Payment terms (2): ___

TOTAL SCORE: ___ / 100

Rating: ___ (Approved / Conditional / Needs Improvement / Not Recommended)

Common Remote Audit Findings

Based on real supplier audits, here are the most common findings and their implications:

Frequency of Audits

RPL Peptide: Audit-Ready Manufacturing Partner

RPL Peptide (Qingdao RPL Biotechnology Co., Ltd.) maintains an open-door policy for international buyer verification.

What we provide for audits:

• Business registration documentation
• Complete equipment list with specifications
• Facility photos and video tour (remote)
• On-site visits welcome by appointment
• Batch-specific COAs with full analytical data
• Batch production records for traceability
• English-speaking technical team for discussion

Audit context:

• Chinese peptide manufacturing infrastructure overview: Peptides from China: A Complete Buyer Guide →
• Manufacturer verification guide: How to Verify a Chinese Peptide Manufacturer →
• Technical documentation: lab.rplpeptides.com →
• Product data: data.rplpeptides.com →

For pricing and product specifications: Browse RPL Peptide’s product catalog →

Related Resources

• Peptides from China: A Complete Buyer Guide →
• How to Choose a Peptide Supplier in China →
• China Peptide Manufacturer vs Peptide Supplier: Key Differences →
• How to Verify a Chinese Peptide Manufacturer →
• Peptide Quality Control: HPLC, LC-MS, Purity Standards & COA Compliance →
• RPL Peptides Lab – Technical Documentation →
• RPL Peptides Data & Documentation Center →