Peptides for Sale:
US-Made, Third-Party Tested

Trusted by the research community for over 7 years

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Core Peptides
US LAB TESTED

US LAB TESTED

Our U.S. lab-tested peptides are
independently verified for purity.

Free Delivery

Free Delivery

Any purchase of $200 or more qualifies
for free delivery within the USA.

Online Support

Online Support

Have a question? We can help. Email us
or connect with us via our contact page.

Research Peptides and Blends For Sale

Core Peptides supplies research peptides and peptide blends for laboratory use. Our peptides are third-party tested by an A2LA-accredited U.S. lab, with an average purity of 99.45% and each tested product’s certificate of analysis (COA) is published on its product page. We stock more than 100 research peptides and blends, including growth hormone secretagogues, bioregulators, copper peptides and enzyme inhibitors. Orders placed before 4 PM ET ship from the USA the same business day, and orders over $200 ship free within the USA. All products are for research use only and are not for human consumption.

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Highest Quality
Peptides For Sale

Welcome to Core Peptides. We are proud to carry the highest quality peptides and peptide blends in the research industry. All of our peptides have gone through rigorous quality control procedures to ensure our clients are receiving the best quality peptides available. We offer custom peptides for sale online.

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PEPTIDES
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PEPTIDE BLENDS

FAQs

Are Core Peptides products third-party tested?
Yes. Every batch is tested by an independent A2LA-accredited US laboratory, Vanguard Laboratory, using HPLC and mass spectrometry. The certificate of analysis for each tested batch is published on the product page.
What purity are your peptides?
Our average peptide purity exceeds 99%, and is verified by HPLC for each batch. The exact result is shown on each tested batch’s certificate of analysis.
How fast do you ship?
Orders placed before 4pm ET, Monday to Friday, ship the same business day by USPS Priority Mail. Orders over $200 ship free within the USA, and UPS Overnight is also available.
Can I get a refund?
Orders that haven’t shipped can be cancelled for a refund by emailing support@corepeptides.com, and refunds may be requested up to 30 days after an order is placed. Refunds may take 2 to 3 business days to post.
In what form are the peptides supplied?
As lyophilized (freeze-dried) powder in sealed vials. Storage recommendations are listed on each product page.
Are your products for human or animal use?
No. All Core Peptides products are sold strictly for laboratory and research use.

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