Terms of Use
The rules of the road.
Using this site means you accept these terms. If you don’t, please don’t use it.
Last updated: June 9, 2026
Who runs this
This site is operated by Cornerstone Peptide Co., Wilmington, Delaware. We are the U.S. commercial supply partner for an FDA-inspected peptide manufacturing facility; we are not the manufacturer of record. Our manufacturing partner’s identity, pricing, and batch availability are disclosed to qualified buyers under mutual confidentiality.
What this site is
This is a catalog and quote-request site for a B2B audience. There is no online checkout: you browse capabilities and the catalog, then request a quote or a briefing. Pricing, lot availability, and documentation are provided to qualified buyers through that process. Nothing on this site is an offer that becomes binding until we confirm an order in writing.
Research material and intended use
Products are supplied as active pharmaceutical ingredient and research material in commercial and laboratory quantities, for research and further manufacturing. Where a product is marked for research use only, it is not for human or veterinary consumption, is not a drug, and is not sold for the diagnosis, treatment, cure, or prevention of any disease.
Determination of intended use, and compliance with all applicable laws, regulations, and licensing requirements, are the responsibility of the purchaser. You represent that you are purchasing in a professional or institutional capacity and that your intended use is lawful.
No medical advice
Information on this site is technical and commercial in nature. It is not medical, pharmaceutical, or regulatory advice, and it should not be relied on as a substitute for professional judgment or independent verification.
Buyer accounts and acceptable use
Browsing the catalog and requesting a quote do not require an account. If you are given access to the buyer portal, keep your credentials confidential and let us know promptly if they are compromised. You agree not to scrape the site, evade rate limits, submit false qualification information, or otherwise interfere with the service. We may suspend access that does any of these things.
Intellectual property
The text, design, documentation, and other content on this site belong to Cornerstone Peptide Co. or are used with permission. Certificates of analysis and documents we provide are for your evaluation and procurement use and may not be republished as your own.
Disclaimers and liability
The site is provided “as is.” To the fullest extent permitted by law, we disclaim implied warranties and are not liable for indirect, incidental, or consequential damages arising from your use of the site. Any product warranty is governed by the terms of the confirmed sale, not by this site.
Governing law and changes
These terms are governed by the laws of the State of Delaware. We may update them from time to time; the date above reflects the current version. Questions go to hello@cornerstonepeptide.com.