PSPeptides
pspeptides.com
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PSPeptides' retatrutide 10mg certificates, three PDFs from North American Diagnostics covering HPLC purity, heavy metals, and endotoxin, reproduce field for field through the lab's own public verify portal at nadiagnostics.com, but the storefront and the laboratory share an identical WordPress author slug, an identical cached avatar file, and the same Cloudflare nameserver pair, so this is same-figures corroboration from a related domain rather than an arm's-length third party. The product page's own specification table pairs the correct CAS number for retatrutide with a molecular formula and weight that neither matches what other vendors publish for that same CAS number nor appears on any of the three lab documents themselves, and the sitewide shipping banner claims delivery to Canada, the EU, the UK, and Australia while the retatrutide product page's own shipping section states only that it ships retatrutide to all 50 US states and US territories, with no mention of those countries. Has a buyer outside the United States been able to get a retatrutide order shipped, or does the international banner simply not apply to this product?
What the record holds
NO FIRM COMMITMENT
“Free UPS 2nd Day Air applies on orders over $200; UPS Next Day Air is offered for an added fee.”
Only carrier transit-tier speed and threshold stated; no dispatch cutoff or vendor processing-day commitment published. Shipping scope itself disagrees across pages (sitewide banner claims international, product page says US-only).
Read from this supplier's own pages on 2026-08-26. This publication has never placed an order with any supplier. This row records what is written and measures nothing about what actually happens after an order.
$69.99
Compound retatrutide 10mg
Listed as Retatrutide (1 Vial), 10MG size option
Price as recorded $69.99 USD, part of a $39.99 to $179.99 range across the 5mg, 10mg, 20mg, 30mg and 40mg variants; a 2-bottle order gets 3 percent off and a 3-or-more-bottle order gets 5 percent off
Read on 2026-08-26. One reading on one day, and prices are not tracked over time here.
This supplier was not part of the Trustpilot reading of 2026-08-25, which covered 59 of the 126 suppliers on file. That is a fact about this publication's coverage, stated rather than left to be read either way.
5 claims from this publication's own dossier on this supplier were read again against the live site on 2026-08-26: 1 held, 4 corrected before publication.
A corrected claim is an error of ours that the re-read caught before it reached a page. This line tracks this publication's own accuracy. It says nothing about the supplier.
Dated entries
4 observations on file, recorded 2026-08-26. Newest first, appended and never rewritten.
The /certifications/ page hosts an in-page COA library with 51 "Lab Tested" entries today, spanning singles, blends, topicals and oral-tablet formats, several holding an archived "View older reports" accordion reaching back to October 2025. Retatrutide alone carries five current strengths, 5mg, 10mg, 20mg, 30mg and 40mg, plus three archived generations (May 2026, Mar 2026, Oct 2025 COA), and every strength links three separate PDFs: a COA/HPLC document, a Heavy Metals document and an Endotoxin document, all hosted on pspeptides.com's own uploads directory rather than on a lab-owned domain. I downloaded the three 10mg Retatrutide PDFs (Test ID PSP-0028014) to the scratchpad and read them directly rather than in a browser. All three share one letterhead: North American Diagnostics, nadiagnostics.com, +1 201-357-0230, 807 Brazos St, Austin, Texas 78701, signed Mark Brownstein, Analysis Administration Lead. Client name printed on every document: "ProSupply Peptides | pspeptides.com," batch ID PSP-06112026RT, date ordered June 11th, 2026, appearance "Lyophilized Puck," vial count "1x | 3mL Vial." The COA reports HPLC purity by "HPLC With UV Detection Coupled With Mass Spectrometry" at 99.93 percent, mass identification "Retatrutide," mass content 10.15mg against the 10mg label. The Heavy Metals document reports Pb, As, Cd and Hg screened by ICP-MS per USP <232> and <233>, all "Not Detected," overall status "PASSED." The Endotoxin document reports the LAL kinetic chromogenic method at under 5 EU per vial, overall status "PASSED."
I fetched nadiagnostics.com directly, independent of pspeptides.com. It resolves to a live site for "N.A. Diagnostics," an independent US laboratory describing itself as running unannounced purchase-and-test projects and publishing every finding to a public Verify portal keyed by batch number. Its verify page posts a GET form to itself with a plain "batch" query parameter, so I queried it directly with curl rather than through a browser: https://nadiagnostics.com/verify/?batch=PSP-0028014 returned a server-rendered page reproducing all three documents (COA, Heavy Metals, Endotoxin) with every field matching the vendor's own copies exactly, HPLC purity 99.93 percent, mass content 10.15mg, batch PSP-06112026RT, client "ProSupply Peptides | pspeptides.com," plus a permanent link at nadiagnostics.com/coa/retatrutide-4/. A control query for an invented Test ID, PSP-9999999, returned "No report found ... Double-check the Test ID or batch number," confirming the portal distinguishes real codes from invented ones rather than echoing anything submitted. The laboratory PSPeptides names does host, on its own domain, the same figures PSPeptides republishes, for a batch explicitly ordered by "ProSupply Peptides." But the two domains are not arm's length: both attribute their pages, in their own schema markup, to the identical WordPress author slug, prosupplynetworkgmail-com, and to the identical cached avatar file, hash 71770d3505ab5f3c27d82d3aaf353460, and both resolve through the same Cloudflare nameserver pair (dion.ns.cloudflare.com and liberty.ns.cloudflare.com) over the same CyberPanel and LiteSpeed stack. One account identity publishes the vendor's storefront and the laboratory that vouches for it, so this is same-figures corroboration from a related domain, not third-party confirmation. The laboratory's public report library is also not exclusive to this vendor: it runs to 340 entries across two sitemaps, and a systematic 38-entry sample named ProSupply Peptides 34 times and a second client, Regenexa, 4 times. One gap: neither nadiagnostics.com's homepage, its About page, nor any certificate or verify page I loaded uses the word accreditation, or names ISO 17025, A2LA or CLIA anywhere, while PSPeptides' own /certifications/ page and /about-pspeptides/ page carry the accredited-laboratory framing four times between them: the singular "independent, accredited laboratory" twice on /certifications/, and the plural "independent, accredited laboratories" once on /certifications/ and once on /about-pspeptides/, with none of the four naming an accrediting body, registrar, certificate number or scope. The accreditation adjective is PSPeptides' own language, not the laboratory's.
Prices and catalog read on 2026-08-26. Retatrutide is sold as "Retatrutide (1 Vial)" through a WooCommerce size-variant selector at five strengths, read from the product page's own variation data: 5mg $39.99, 10mg $69.99, 20mg $104.99, 30mg $144.99, 40mg $179.99, all USD. A bundle discount applies at checkout: 2 bottles for 3 percent off, 3-or-more bottles for 5 percent off. The product's own specification table pairs CAS 2381089-83-2, the correct number for Retatrutide, with a molecular formula and molecular weight that do not match it: "Formula C239H343N53O70 | MW: 5,414.9 Da." Primeva Labs' certificate, read separately this wave, and other vendors' pages carrying the same CAS number print C221H342N46O68 at 4731.35 g/mol for it, so PSPeptides' own printed formula and weight disagree with the CAS number on the same line and with what other vendors publish under that identical CAS. The product description text also states the vial is "Available in 5mg, 10mg, 20mg, and 30mg vials," omitting the 40mg size that the variant selector, the certifications page and the page's own Additional Information table ("MG 5MG, 10MG, 20MG, 30MG, 40MG") all otherwise list. Catalog scope: 83 product URLs in /product-sitemap.xml, spanning injectable-vial, nasal-spray and tablet delivery formats of many of the same compounds, four peptide bundles, and non-peptide supply items such as bacteriostatic water, alcohol prep pads, vial stoppers, an injection pen, pen tips and refill cartridges, and syringes. Payment, from the dedicated /peptide-payment-options/ page: Visa, Mastercard, Amex and Discover with no stated surcharge, Afterpay (pay in 4), Klarna (pay in 4 or monthly installments), Apple Pay, Google Pay, Shop Pay, Cash App and Zelle, explicitly no cryptocurrency, run through a stated Shopify Payments integration despite the storefront otherwise running on WordPress and WooCommerce markup. Shipping claims disagree across pages fetched: the sitewide banner and a homepage FAQ answer state, "Yes, we ship internationally! We ship across the US and US territories, and now also to Canada, the EU, the UK, and Australia," while the Retatrutide product page's own "Shipping and Order Information" section states, "PSPeptides ships retatrutide to all 50 US states and US territories," with no mention of the four international destinations the homepage names; nothing fetched resolves whether Retatrutide itself stays domestic-only or the product-page copy is simply stale. Free UPS 2nd Day Air applies on orders over $200; UPS Next Day Air is offered for an added fee. Refunds: the Terms page states no returns are accepted generally, but carries two specific carve-outs, a defective-or-broken-item claim requiring photo and video within 3 days of carrier-marked delivery, and a third-party-lab-test carve-out, a full refund plus reimbursement of the testing cost if a buyer's own independent lab test shows the vial does not match what was advertised or reports HPLC purity below 80 percent, claimable within 30 days of delivery. Purchasing itself is account-gated: "PSPeptides requires mandatory account creation and login before any order may be placed. Guest checkout, express checkout, accelerated wallet checkout, and any one-click or bypass checkout path are prohibited," with a business/entity type, a "Field of Qualified Research" and an electronic signature required at registration, plus an adult signature confirming age 21-plus required at delivery of a first order. The Terms also state PSPeptides "may screen and reject orders" tied to certain business types it names as high-risk, including body-composition and hormone-replacement clinics and gyms, among others. Entity and contact: "PSPeptides is a brand of ProSupply Services LLC" per the Terms, the About page and the sitewide footer; the About page states a 25-person team based in New Jersey and more than five years in business, but no street address or telephone number for the vendor displays as visible text on any page fetched, despite the About page and a homepage FAQ answer both referencing phone and text support alongside email; the vendor's own address and phone are published sitewide only inside the Rank Math JSON-LD schema block in every page's head, a Paramus, New Jersey address whose own suffix marks it as a UPS Store mailbox, 556 N Rt 17 STE 5 UPS#335, Paramus, NJ 07652, with a customer-support number of +1 551-284-2670, neither ever rendered in copy a shopper reads. Contact is support@pspeptides.com, recovered from the page's Cloudflare-obfuscated mailto encoding, staffed 9AM to 10PM EST seven days a week.
CAUTIONCautions noted. First, PSPeptides' own marketing describes its laboratory relationship in stronger terms than the laboratory itself claims: the accredited-laboratory framing appears four times across the /certifications/ and /about-pspeptides/ pages (the singular form twice on /certifications/, the plural form once on each page), but North American Diagnostics' own site, checked directly, makes no accreditation claim anywhere and names no registrar, certificate number or scope; nor is the laboratory's public report library exclusive to this vendor, running to 340 entries of which a 38-entry sample named ProSupply Peptides 34 times and a second client, Regenexa, 4 times. Second, the sitewide shipping banner and the Retatrutide product page's own shipping section disagree on whether the item ships outside the US (detailed in the entry above); a buyer relying on the banner rather than the product page could reasonably expect delivery to Canada, the EU, the UK or Australia on an item whose own page describes only domestic fulfillment. Third, the printed molecular formula and molecular weight on the Retatrutide specification table, C239H343N53O70 and 5,414.9 Da, do not match the CAS number printed on the same line, nor the formula and weight other vendors in this wave print for that identical CAS number; none of the three lab PDFs I opened states a formula or molecular weight, so nothing on the page's own certificate corroborates either figure. Fourth, the product description's own size list, 5mg, 10mg, 20mg and 30mg, omits the 40mg size that the variant selector, the certifications page and the specifications table all otherwise carry, a minor but real mismatch between the descriptive copy and the vial the same page actually sells. Fifth, no street address or telephone number for PSPeptides or its operating entity, ProSupply Services LLC, displays as visible text on any page fetched; both exist only in the sitewide JSON-LD schema block embedded in every page's head, a Paramus, New Jersey address whose own suffix marks it a UPS Store mailbox (556 N Rt 17 STE 5 UPS#335, Paramus, NJ 07652) and a customer-support telephone number (+1 551-284-2670), neither ever shown to a visitor, including on the dedicated Contact page, whose visible content lists only an email address and business hours, despite an otherwise detailed public presence: a stated New Jersey team headcount, named support hours, an SMS program with a stated message-frequency range, and a laboratory-verifiable Retatrutide certificate. Sixth, the Retatrutide product page leans on outcome-percentage figures drawn from named external trials, a body-mass-reduction figure attributed to a 2023 NEJM Phase 2 report and an HbA1c-and-body-mass figure attributed to a Phase 3 TRANSCEND-T2D-1 report, inside what is otherwise a shopping-cart product listing, alongside repeated "when researchers buy retatrutide" phrasing that reads as search-engine-oriented copy layered onto the listing rather than a research-material specification sheet.
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Some supplier links here are referral links, marked where they appear, which pay Terminus Research when a reader buys. The same terms are open to every supplier in the ledger, apart from the one exception the referral policy page names, participation changes no score, rank, caution, or coverage decision, and a link is not an endorsement.