Peptide Quality Assurance
GMP-Certified Manufacturing, HPLC-Verified Purity & Full CoA Documentation
Quality assurance is the foundation of every order from Peptide Direct. All compounds are manufactured under GMP and ISO 9001:2015 certified conditions, verified by HPLC analysis to a minimum purity of ≥98%, and supplied with a Certificate of Analysis on every batch.
For wholesale buyers, clinics, and distributors who need auditable supply chains and documented quality standards, this page outlines what we manufacture to, how purity is verified, and what documentation we provide.
Manufacturing Standards
Every compound in our range is manufactured under internationally recognised quality management conditions. Our manufacturing partners operate under the following certified frameworks:
| Standard | What It Covers |
|---|---|
| GMP (Good Manufacturing Practice) | Controls over production processes, equipment, personnel, and environmental conditions to ensure consistent, safe compound production |
| ISO 9001:2015 | International quality management system standard covering process consistency, risk management, and continuous improvement across the supply chain |
| HACCP (Hazard Analysis Critical Control Points) | Risk-based protocols applied throughout the production and handling process to prevent contamination and ensure product integrity |
Manufacturing certifications are available as part of the documentation package for buyers with formal procurement or clinical compliance requirements.
Purity Verification
All compounds are verified by HPLC (High-Performance Liquid Chromatography) analysis to a minimum purity of ≥98% before dispatch. HPLC is the industry-standard analytical method for confirming peptide identity and purity — it separates and quantifies each component present in a sample, providing a precise and reproducible purity measurement.
Purity verification is performed on a batch-by-batch basis. Every order is accompanied by a Certificate of Analysis (CoA) referencing the specific batch, the compound, the analytical method used, and the confirmed purity result.
Certificate of Analysis
Every order from Peptide Direct ships with a Certificate of Analysis as standard. The CoA is a batch-specific document that provides:
- Compound name and specification
- Batch or lot number
- Manufacturing date and expiry
- HPLC purity result (≥98% confirmed)
- Analytical method reference
- Storage conditions
For private label buyers, CoA documents can be issued referencing your product name and brand rather than Peptide Direct's. For clinic and dispensary buyers with formal procurement requirements, additional documentation is available on request.
QA Documentation for Procurement & Compliance
We understand that different buyers have different documentation requirements. Wholesale buyers placing large orders, clinics procuring for dispensary use, and distributors supplying regulated markets may all need documentation beyond a standard CoA.
We can provide the following on request:
- GMP manufacturing certification — confirming the manufacturing facility's GMP status
- ISO 9001:2015 certification — confirming quality management system compliance
- Batch-level HPLC reports — full analytical data for a specific batch
- Supply chain documentation — for buyers requiring auditable chain of custody records
- Private label CoA — issued under your brand name for clinic and dispensary buyers
Documentation requests are handled as part of the account onboarding process. Contact us to discuss your specific requirements before placing an order.
Storage & Handling Standards
Lyophilised peptide powders are stable compounds but require appropriate storage to maintain integrity through the supply chain. All compounds from Peptide Direct are:
- Supplied as lyophilised (freeze-dried) powder for maximum stability during transit
- Packaged with desiccant to protect against moisture ingress
- Labelled with batch-specific storage conditions on every vial
- Dispatched with cold chain protection where required
Recommended storage conditions are specified on the CoA and on product labelling. For long-term storage, compounds should be kept at −20°C in a sealed container away from light and moisture.
QA Standards Across the Full Range
The same manufacturing and purity standards apply across every compound we supply — there are no exceptions by category or compound. Whether you are ordering BPC-157 for a recovery-focused clinic, AOD-9604 for a weight management brand, or Epitalon for a longevity programme, the same GMP manufacture, HPLC verification, and CoA documentation applies.
Browse our compound range by category:
- Weight Management Peptides — AOD-9604, Cagrilintide, Retatrutide
- Recovery & Repair Peptides — BPC-157, TB-500, GHK-CU
- Longevity & Anti-Aging Peptides — Epitalon, NAD+, MOTS-c, SS-31
- Performance Support Peptides — CJC-1295 No DAC, Ipamorelin, Tesamorelin
- Wellness Peptides — PT-141, Oxytocin, Thymosin Alpha-1
Frequently Asked Questions
What purity standard do your peptides meet?
All compounds are verified by HPLC analysis to a minimum purity of ≥98% on a batch-by-batch basis. Every order ships with a Certificate of Analysis confirming the purity result for that specific batch.
What manufacturing standards do you operate under?
All compounds are manufactured under GMP (Good Manufacturing Practice) and ISO 9001:2015 certified conditions, with HACCP protocols applied throughout the production and handling process.
What is a Certificate of Analysis and what does it contain?
A Certificate of Analysis (CoA) is a batch-specific quality document that confirms the compound name, batch number, manufacturing and expiry dates, HPLC purity result, analytical method, and storage conditions. Every order from Peptide Direct ships with a CoA as standard.
Can I get a CoA under my brand name for clinic use?
Yes. For private label and clinic buyers, CoA documents can be issued referencing your product name and brand rather than Peptide Direct's. This is commonly required for clinical procurement and dispensary documentation.
Can I get GMP and ISO 9001:2015 certification documentation?
Yes. Manufacturing certifications are available on request as part of the account onboarding process. Contact us to discuss your documentation requirements before placing your first order.
How should peptides be stored?
Lyophilised peptide powders should be stored at −20°C in a sealed container away from light and moisture for long-term stability. Storage conditions are specified on the CoA and on product labelling. Compounds are dispatched as lyophilised powder with desiccant packaging to maintain integrity during transit.
Do your QA standards apply to every compound you supply?
Yes. GMP manufacture, HPLC purity verification to ≥98%, and CoA documentation apply to every compound across all five product categories — there are no exceptions.