A Certificate of Analysis is a laboratory document reporting the testing performed on a submitted sample and the results issued by the laboratory.

Third-party testing documentation is available for select products. Not every product or concentration in the Mile High Peptides LLC catalog has a published COA. The COA Library is updated as additional testing documentation becomes available.

A product marked Updated Testing in Process may have previous testing history even though an older report is not currently displayed. We periodically update the testing documentation maintained in our library, and older reports may be removed when updated testing is underway or when they are no longer the documentation we currently publish. Updated documentation will be added when testing and document processing are complete.

Testing practices may vary. In some cases, documentation may be available for the individual compounds used in a blend rather than the finished blended product itself.

A reported purity below 99% does not automatically indicate a quality issue. Manufacturers establish their own acceptance specifications based on the specific compound, manufacturing process, validated analytical methods, and internal quality standards. Because these specifications can vary, acceptable purity ranges are not necessarily identical across all manufacturers or products.

Depending on the manufacturer’s established specifications, purity values between 95% and 99% may still meet the applicable acceptance criteria.

At Mile High Peptides LLC, we believe transparency is an important part of quality. We do not try to hide or selectively publish only the highest results. We make independent third-party Certificates of Analysis avaialbe as they are received, including results that may vary between products or testing periods.

A Certificate of Analysis should be reviewed as a whole, including identity confirmation, analytical methodology, and any other testing reported by the laboratory—not purity alone.

Every manufacturer establishes its own acceptance specifications based on the specific compound, manufacturing process, validated analytical methods, and internal quality standards. As a result, acceptable purity specifications may differ between manufacturers and products.

For this reason, comparing products solely by a single purity percentage can be misleading. The complete Certificate of Analysis provides a more meaningful assessment than purity alone.

Yes. The COA Library is a living resource. When additional testing is performed on select products or submitted samples, reports may be added, updated, removed, or replaced to reflect the laboratory documentation we currently maintain and publish.

A report published today may differ from a report published later as new testing is completed.

Not every concentration of a product is necessarily submitted for separate third-party testing. In some cases, multiple concentrations are prepared from the same active ingredient or source material that has already undergone quality testing.

Depending on the manufacturer, source material, and testing approach, testing may be performed on an active ingredient, a submitted sample, or other quality-control material rather than every individual concentration. The applicable laboratory document should be reviewed to determine exactly what sample was tested and what testing was performed.

At Mile High Peptides LLC, we publish available third-party Certificates of Analysis for select products. Additional reports may be added or updated as new testing documentation becomes available.

If a product is not listed, it may not currently have a published COA. Contact Mile High Peptides LLC support with the exact product name if you have questions about whether testing documentation is currently available.