Everything researchers come back to
Certificates, testing information, laboratory guides, ordering details and the policies behind every page on Peptides Online. One page, every door.
CoA Library
Search and download the Certificate of Analysis for every research peptide we supply, with test date, laboratory and measured purity for each batch.
Quality Assurance & Testing Process
How a batch moves from production to your bench, and what is checked along the way.
- 1Batch-level records — every production run is documented separately.
- 2Independent testing — HPLC for purity, mass spectrometry for identity.
- 3Review & release — results checked against the batch before sale.
- 4Traceable supply — vial label, batch number and CoA stay connected.
Quality & Testing
How our peptides are tested, documented and traced from batch to vial.
- Independent Laboratory TestingWhy independent testing matters, what HPLC purity and mass spectrometry identity results show, and what they do not.How testing works
- Batch TraceabilityHow batch and lot numbers connect the vial you receive to its analytical documentation and records.Trace a batch
- How to Read a CoAA plain-language walk-through of sample details, purity results, identity testing and matching a certificate to your product.Read the guide
Laboratory Guides
Practical reference material for handling and understanding research peptides.
- Storage & Laboratory HandlingTemperature, moisture, light exposure, vial handling and record keeping from the moment a vial arrives.Storage guidance
- Safety InformationGeneral laboratory safety guidelines, handling and reconstitution notes, and safe disposal of peptide materials.Safety guidelines
- Peptide CalculatorFree reconstitution calculator for working out volumes and concentrations with bacteriostatic water and other solvents.Use the calculator
- Peptide GlossaryScientific terms used in peptide research, molecular biology, biochemical studies and laboratory analysis.Browse terms
- Peptide EducationAn educational overview of how peptides function in biological signalling, metabolic research and receptor interactions.Start learning
- Research BlogLong-form, referenced articles on individual compounds, testing methods and laboratory practice.Read the blog
Ordering & Support
What happens after you order, and how to reach us if something goes wrong.
- How It WorksFrom browsing and secure checkout to order processing, dispatch and best practice after receipt.See the steps
- Shipping & Delivery PolicyOrder processing, estimated UK delivery times, tracking, packaging and help with delayed parcels.Delivery details
- Returns PolicyDamaged or incorrect items, cancellations, refunds and which research products cannot be accepted back.Returns policy
- Complaints ProcedureHow to raise a complaint, what information to include, how it is reviewed and what happens next.Raise a complaint
- FAQAnswers to common questions about vial sizes, purity standards, CoA documentation, payment methods and UK delivery.Find an answer
- Contact UsQuestions about research peptides, orders, purity documentation or laboratory product support.Get in touch
Policies & Standards
The research-use-only terms, editorial standards and legal information behind the website.
- Research Use Only PolicyWhat Research Use Only means, the intended laboratory use of our products and customer responsibilities.Read the policy
- Restricted Use NoticeProhibited human use, laboratory settings, regulatory responsibility and customer obligations for research materials.Read the notice
- Editorial PolicyHow content is prepared and reviewed, how sources are chosen, and how corrections are handled.Editorial standards
- Research ReferencesThe scientific databases and published literature used when preparing educational and technical content.View sources
- DisclaimerThe research and educational purpose of the website and the limits of the information provided.Read the disclaimer
- Terms & ConditionsThe terms for purchasing research peptides, buyer responsibilities and legal compliance.Read the terms
- Privacy & CookiesHow personal information is collected, used, protected and retained, and how cookies are managed on the site.Privacy policy
- Company InformationRegistered company name, company number, registered office and how to contact Peptides Online.Company details
Can't find what you need?
Ask about batch documentation, testing, storage or an order and our team will point you to the right information.
Research Use Only. All content in the Knowledge Centre describes the laboratory handling, analysis and documentation of research-use-only material. It is not medical advice and does not relate to human or veterinary use.