| Raw Material Identity | Confirm that the material is bovine adrenal gland and not a blend of unspecified organs. | The specification should clearly state the animal species, tissue identity, powder form, and intended use. The product should have a defined identification test. | Product specification, identity test method, representative sample, and certificate of analysis (COA). |
| Animal Origin and Traceability | Review the country or region of origin, slaughterhouse traceability, lot coding, and chain-of-custody controls. | Every finished-product lot should be traceable back to documented raw-material lots and processing records. | Traceability procedure, lot records, supplier declarations, and recall or mock-recall records. |
| Supplier Quality System | Assess whether the facility operates under documented good manufacturing, hygiene, and quality-control procedures. | Prefer facilities with a current third-party audit or certification appropriate to the product category, plus controlled SOPs and deviation management. | Audit summary, quality manual, SOP index, corrective-action records, and certificate validity dates. |
| Raw-Material Handling | Check the time and temperature controls between collection, chilling or freezing, and processing. | Raw glands should be handled under controlled sanitary conditions, with documented temperature monitoring and protection from cross-contamination. | Receiving records, temperature logs, sanitation procedures, and raw-material acceptance criteria. |
| Processing Method | Identify whether the powder is freeze-dried, low-temperature dried, spray-dried, or processed by another method. | The process should be validated for moisture reduction and microbial control while minimizing unnecessary heat exposure and oxidation. | Process flow chart, critical process parameters, validation summary, and batch manufacturing record. |
| Moisture and Water Activity | Evaluate moisture content and water activity because both affect shelf stability and microbial growth risk. | Use supplier-defined limits supported by stability data. A commonly used control target for dry powders is water activity below 0.60, but the final limit should be product-specific. | Routine moisture result, water-activity result, test method, and product specification. |
| Microbiological Quality | Review testing for total aerobic microorganisms, yeast and mold, Enterobacteriaceae, and relevant pathogens. | The specification should include limits suitable for an animal-derived powder. Salmonella should be absent in the tested analytical portion, with the sampling plan clearly stated. | Recent lot-specific microbiology COA, sampling plan, laboratory accreditation, and test methods. |
| Heavy Metals and Environmental Contaminants | Check arsenic, lead, cadmium, mercury, and any contaminants relevant to the source region and intended market. | Results should comply with applicable legal requirements in the destination market and with the buyer's internal limits. | Independent laboratory report, method detection limits, regulatory compliance statement, and risk assessment. |
| Residues and Animal-Health Controls | Determine whether the supplier assesses veterinary-drug residues, pesticides, and other contaminants relevant to bovine tissues. | A documented risk-based testing program should be in place, particularly when raw materials come from multiple sources. | Residue-monitoring plan, supplier declaration, periodic test reports, and source-control procedure. |
| Adulteration and Authenticity | Confirm that the powder is not diluted with fillers, proteins, or material from other tissues. | Use orthogonal testing where appropriate, such as microscopy, protein profiling, DNA-based testing, or other validated identity methods. | Authenticity protocol, method validation, laboratory results, and change-control records. |
| Active-Component Consistency | Clarify which nutritional or biochemical markers are used to compare batches. | Markers should be selected according to the product's intended use, with defined test methods and acceptable batch-to-batch ranges. Avoid unsupported therapeutic claims. | Specification sheet, validated assay or marker method, trend data, and batch COAs. |
| Allergen and Cross-Contact Control | Review the facility's handling of milk, soy, gluten-containing materials, and other regulated allergens. | The supplier should disclose intentional ingredients and maintain documented cleaning and cross-contact controls. | Allergen statement, cleaning validation or verification records, and shared-equipment assessment. |
| Packaging and Storage | Assess protection from moisture, oxygen, light, pests, and physical contamination during storage and transport. | Packaging should be food- or supplement-contact suitable for the intended use, sealed, lot-coded, and supported by defined storage conditions. | Packaging specification, seal-integrity checks, warehouse records, and transport requirements. |
| Shelf-Life and Stability | Verify that the stated shelf life is supported by real-time or appropriately designed accelerated stability data. | Stability should monitor appearance, odor, moisture or water activity, microbiology, and relevant quality markers under labeled storage conditions. | Stability protocol, time-point results, expiry rationale, and retain-sample procedure. |
| COA Reliability | Check whether the COA is specific to the shipped lot rather than a generic document. | A complete COA should include lot number, production date, test dates, specifications, actual results, methods, and authorized approval. | Lot-specific COA, laboratory qualification records, and a clear distinction between in-house and external testing. |
| Regulatory and Claims Review | Ensure that product labeling, import documentation, and marketing claims match the destination-market requirements. | Use factual composition and quality statements. Claims about treating, preventing, or curing disease require appropriate legal and regulatory review. | Label draft, regulatory assessment, import documents, and claims-substantiation file. |
| Supplier Approval Decision | Combine documentation review, sample evaluation, laboratory testing, and manufacturing-site assessment. | Approve only when identity, safety, traceability, process control, and consistency requirements are demonstrated and major corrective actions are closed. | Supplier questionnaire, risk scorecard, sample test results, audit report, and approved-supplier record. |