Sterling Peptides Ltd is committed to supplying high-purity research peptides intended exclusively for laboratory and analytical applications.
To maintain consistent product quality, we work with established manufacturing partners and utilise recognised analytical testing methods to verify compound identity and purity.
## Analytical Testing
Where applicable, batches may undergo analytical verification using recognised laboratory techniques, including:
• High-Performance Liquid Chromatography (HPLC)
• Liquid Chromatography–Mass Spectrometry (LC-MS)
• Content Verification Analysis
These methods are widely used in scientific laboratories to analyse compound identity and assess purity for research purposes.
## Blend Products
For products consisting of multiple compounds blended into a single formulation, analytical testing may differ from testing performed on individual compounds.
Where applicable, blend products may undergo content verification and identity analysis to confirm the presence and quantity of the declared components.
Analytical reports provided for blend products should be interpreted according to the scope of testing performed. A content verification, quantitative analysis, or mass analysis report is intended to confirm composition and component quantities and should not be interpreted as a standalone purity analysis of each individual constituent within the finished blend.
Purity specifications displayed for blend products may be based on manufacturer specifications and analytical data relating to the individual raw materials used in the formulation.
The scope of testing performed on any batch may vary depending on the product type, testing methodology, laboratory availability, and the specific analytical objectives of the test commissioned.
## Independent Verification
In selected cases, analytical testing may be conducted by independent third-party laboratories. Third-party verification provides an additional level of confidence in the identity and analytical quality of research materials.
Sterling Peptides may also conduct independent verification of incoming batches to confirm consistency with supplier specifications. Where significant discrepancies are identified, batches may be rejected and returned to the supplier.
## Certificates of Analysis
Where available, Certificates of Analysis (COA) or batch-specific testing data may be provided.
These documents may include analytical information relating to compound identity, content verification, purity, or other analytical parameters depending on the scope of testing performed.
The availability of a COA or analytical report does not imply that every possible analytical parameter has been tested for every batch.
## Batch Consistency
Sterling Peptides Ltd aims to maintain consistent quality standards across all batches of supplied research materials. Batch identifiers and related analytical information may be available upon request where applicable.
## Manufacturing & Handling
Our research materials are sourced from specialised manufacturing partners operating under controlled laboratory conditions. Appropriate handling and packaging procedures are used to support product stability during storage and transit.
## Research Use Only
All products supplied by Sterling Peptides Ltd are intended strictly for laboratory research and analytical purposes. They are not for human or veterinary consumption and are not intended for medical, diagnostic, therapeutic, or veterinary use.
Purchasers are solely responsible for determining suitability for their intended research application.
“Not all products or formulations are tested for purity using the same analytical methodology, and blend products may be analysed using different verification methods than single-compound products.”
### Acceptance of Terms
By accessing this website and purchasing products from Sterling Peptides Ltd, you acknowledge that you have read, understood, and agree to the information contained within this Product Testing & Verification Policy, together with our Terms & Conditions, Research Use Disclaimer, and other applicable website policies.
You acknowledge that analytical testing methodologies may vary between products, formulations, and batches, and that the scope of any analytical report is limited to the specific testing performed by the laboratory.
By placing an order, you agree that product specifications, analytical reports, and Certificates of Analysis shall be interpreted in accordance with the scope of testing conducted and the terms outlined in this policy.
## Contact
For further information regarding product testing, analytical verification, or Certificates of Analysis, please contact:
Sterling Peptides Ltd
info@sterling-peptides.co.uk