Peptide Warehouse review

Who they are and what we checked

Peptide Warehouse is a US-only seller of research peptides whose company details are almost entirely absent from its own website, and whose certificates are, by contrast, among the easiest to verify in our set. That contrast is the whole story of this record. The catalog runs to about 55 products in vials and blends, the headquarters city is not stated, the founding year is not stated, and the store sits behind an age and researcher gate with a research-use-only disclaimer.

We read the homepage, the BPC-157 product page, the COA index, the shipping policy, the payment methods page and the about page, and we checked the Trustpilot profile. We looked for an address, a phone number and an email, and we searched the public record for warning letters. The facts below come from those pages or from public records.

What the certificates actually show

The COA index at /coa-index/ lists 55 batch-specific reports. Eighteen of them carry accession numbers from Freedom Diagnostics, and those numbers can be entered on the laboratory’s own website, freedomdiagnosticstesting.com, to confirm that the report exists and says what the vendor says it says. Very few suppliers we track offer a check that runs through the lab rather than through the vendor, and it is the strongest single feature of this record. The BPC-157 10 mg report shows 99.62 percent purity by HPLC-UV with identity confirmed by LC-MS, and it is dated September 24, 2026. Reports dated this year also exist for Tesamorelin and several blends, so the library is current as well as checkable.

The limitation is coverage. Only 18 of the 55 reports name Freedom Diagnostics; the issuing laboratory for the other 37 is not stated. A buyer can verify the attributed batches independently and has no way to trace the rest. HPLC and mass spectrometry are documented on the certificates we saw, while endotoxin and sterility testing are not documented anywhere on the site. For a buyer who needs identity and purity confirmed by a lab they can contact themselves, the attributed reports are as good as this market gets. For a laboratory that needs endotoxin or sterility data, Peptide Warehouse does not publish it.

The company, the prices and the fine print

Here the record thins out sharply. Peptide Warehouse publishes no street address, no phone number and no email. Contact is through a web form only. The company says it is US-based and ships from the US, and that is as specific as it gets. No certifications are claimed. The site states a “100% Customer Satisfaction Guarantee” with no terms attached, and returns are governed by a separate Returns and Refunds Policy that excludes shipping charges for carrier delays.

The Trustpilot profile displayed as removed when we fetched it on October 19, 2026; regional listings had earlier shown a handful of reviews. We found no FDA warning letter naming the company. One practical warning: the brand name collides with unrelated stores at peptideswarehouse.com, peptidewarehouse.ca and auspeptidewarehouse.com.au, and a buyer searching by name can easily land on the wrong one. The company reviewed here operates at peptide-warehouse.com, with the hyphen.

Pricing is mid-market with volume steps. BPC-157 is $52.99 for 5 mg, $64.99 for 10 mg and $109.99 for 20 mg. Listings include BPC-157, a BPC-157/TB-500 Blend, Tesamorelin, IGF-1 LR3, LL-37, KLOW Blend, Adamax and a set of Khavinson peptides.

Shipping is US-only by USPS and UPS. Most orders ship within 1 to 2 business days, with a USPS cut-off at 5 PM Eastern and a UPS cut-off at 3 PM Eastern, and Priority shipping is free over $299, a higher threshold than most peers. Payments are card, Zelle and crypto, but the card option works in an unusual way: after checkout the company emails a payment link rather than taking the card on the site. That flow is not inherently a problem, but a buyer should expect it, and should be cautious about any payment link that does not arrive from the address they expect.

It helps to be specific about what the accession-number check does and does not tell a buyer. Entering the number on the laboratory’s site confirms that Freedom Diagnostics issued a report with that identifier and shows what the report says, which rules out a fabricated or altered document. It does not confirm that the vial in the box came from the batch on the report; that depends on the vendor’s own batch labeling, which we have no reason to doubt here but also no way to check. The attributed certificates therefore answer the question most buyers ask first, whether the paperwork is real, and leave the second question, whether it is the right paperwork, where it always sits, with the vendor’s honesty.

Set against the field, that still places Peptide Warehouse in the top group for how certificates are published and in the middle for how much the company discloses about itself. Several suppliers we track publish an address, a phone number and a named operator and also publish checkable certificates. A larger number publish neither. Peptide Warehouse has chosen to do one without the other, and a buyer should decide which of the two matters more for their situation before the first order.

Bottom line

Peptide Warehouse publishes certificates that a buyer can check with the laboratory directly, dated this year, and that is the feature we most want to see and most rarely do. Everything about the company itself points the other way: no address, no phone, no email, a removed review profile, a card payment handled by emailed link and a lab named on only a third of the reports. If your decision rests on whether the document for your batch is real and current, the attributed reports here answer that better than almost anyone. If your decision rests on knowing who you are buying from, this company gives you nothing to go on, and a small first order limited to the Freedom Diagnostics-attributed batches is the sensible way in.