Core Peptides Review: Lot-Numbered Vanguard Lab COAs, HPLC-Only Testing, Fast US Shipping

Core Peptides is an online research peptide supplier at corepeptides.com. Its contact page lists a mailing address on South Kirkman Road in Orlando, Florida, along with a phone line and support email, and the site says its products are made in the United States and ship from there.

This review looks at the supplier's testing paperwork, labeling, purchase checks and order policies. Core Peptides names its lab and posts lot-numbered reports for many products, but its testing stops at HPLC, coverage is not complete, and product pages carry far more health-oriented content than strict research-use labeling allows.

What Core Peptides Sells

The shop shows 104 listings in two groups, single peptides and blends. All are described as freeze-dried powder in sealed vials, with common items such as BPC-157, Ipamorelin, Selank, Melanotan 2 and NAD+ offered in one or more sizes.

A run of 15 cosmetic research peptides, such as Matrixyl, Argireline and Syn-AKE, is sold as 200 mg vials of powder and tagged topical in the product names, without any application directions. Prices we looked at ran from about $20 for the smallest vials to about $292 for the largest NAD+ size, with most single peptides between about $40 and $100. Storage is listed at −20 °C, dry and away from light.

Testing and Certificates: Vanguard Laboratory HPLC Reports

The FAQ says every batch is tested by Vanguard Laboratory, which the supplier describes as an A2LA-accredited US lab, and that certificates appear on product pages. The site states purity above 99% and an average of 99.45%.

Where reports are posted, they are specific. The BPC-157 page links PDFs for lots C74112 and C74113, both tested on July 22, 2026, with results above 99.8%. The NAD+ page shows a separate lot for each size, with results between about 98.1% and 99.3%, and the Ipamorelin page shows lot C74140 at 98.46%. Some of these figures sit below the headline claim, so buyers should read the report rather than the badge.

Two gaps stand out. Every report seen lists HPLC-UV/VIS as the method for both identity and purity, and no mass spec result appears, so identity rests on HPLC alone. Coverage is also incomplete: the Selank and Matrixyl pages showed no certificate, lab or lot at all. The contact page says buyers can request a COA by giving the product name and the batch number printed on the vial.

Labeling and Purchase Checks

Research-use notices appear across the site. The footer says products are for lab research only and not for human or animal consumption, that the statements have not been evaluated by the FDA, and that the company is a chemical supplier rather than a compounding pharmacy or outsourcing facility. The terms say products should be handled only by qualified professionals in a research setting.

Product descriptions are the weak point. Pages such as Selank, BPC-157 and Matrixyl summarize study findings in health-oriented terms, including some small human studies. No use directions were seen, but this content falls short of strict research-use labeling, and the labeling check reflects it. The terms set an 18+ requirement, and no age gate or research confirmation appeared at add-to-cart.

Ordering, Shipping and Handling in Transit

The footer shows Mastercard under its payment heading, and no other methods are listed. Orders placed before 4 PM Eastern, Monday to Friday, ship the same business day by USPS Priority Mail, which takes one to three business days. Priority costs $12 and is free on US orders of $200 or more, and UPS Overnight is a flat $49.

The policy does not mention cold packs, packaging or international shipping, and it says the supplier is not responsible for postal delays once a parcel leaves its facility. Labs outside the United States should confirm with support before ordering.

Refunds, Reships and Support

Refund terms are short. Unshipped orders can be cancelled by email for a refund, refund requests are accepted up to 30 days after the order date, and refunds should post within two to three business days. The policy does not say whether opened vials qualify, and it gives no process for damaged, lost or incorrect parcels or for reships.

Support is available by email, a contact form and a phone line staffed 9am to 5pm Eastern on weekdays, with replies promised within 24 hours. The contact page also says corepeptides.com is the company's only official store. The terms do not name a legal entity or governing law.

Verdict: Which Labs Core Peptides Suits

Core Peptides suits US labs that want a broad catalog, a named testing lab and fast domestic shipping, and that are comfortable with HPLC-only paperwork. It is a weaker fit for labs that need mass spec identity data, a certificate for every listing or detailed claim terms.

Before ordering, check that the product page shows a current report for the exact size, note its lot number and confirm the report with Vanguard Laboratory. When the vial arrives, match its batch number to that report and contact support quickly about any problem, since no claim window is written down.