Capstone Peptides

Read again on 2026-09-25 after the vendor wrote to request corrections to two rows of this record's checklist, Lab named and the research-use row, and to report changes on its site. How the site answered: a plain request for the homepage, /lab-testing-coas/, /about/ and /product/aod-9604-5-mg/ returned HTTP 200 and the same site-entry page instead of the page asked for, and a request for an invented address, /product/terminus-control-no-such-product/, returned that same page with the same status, so on this site a 200 does not show that a page exists. The entry form was not submitted. Page text was read instead through the site's own public WordPress page API and its WooCommerce store API, which serve published page bodies and product data without the entry page, and from product-sitemap.xml; the theme around each body, footer included, was not read. The site-entry page is headed "Laboratory research materials supplier" and reads "This company supplies research-use-only materials to qualified laboratory and institutional buyers. You must be 21 or older and confirm the statements below to enter.", above a notice that all materials are for "laboratory research use only" and "not for human use, therapeutic use, or consumer purchase", and four statements to tick, the first "I am 21 years of age or older". The /about/ body states "Every product is sold for laboratory research only and is not for human or veterinary use." A separate /research-use-only-disclaimer/ page says Capstone Peptides "supplies materials intended strictly for laboratory and research use only", and the store API describes the CP-3R and AOD-9604 listings as lyophilized powder "for laboratory research use only". The homepage body itself, as the page API serves it, carries no research-use sentence; the entry page served at the homepage address does. Accumark Labs is named on all three pages the vendor pointed to. The homepage body: "Every Capstone Peptides product is tested by an independent third-party laboratory, Accumark Labs, before it ships." The /about/ body: "Every compound we sell is tested by Accumark Labs, an independent laboratory with no financial interest in the products." The /lab-testing-coas/ body: "Every compound we sell is third-party tested by Accumark Labs, and every certificate is published here". ON THE TWO ROWS THE VENDOR DISPUTED, THE ERROR WAS IN HOW THE CHECKLIST READ THIS RECORD, NOT A CHANGE ON THE VENDOR'S SITE. Both read not met while this record's own 2026-08-26 entries said that every certificate on the site is attributed to Accumark Labs by name and that the site gates entry behind a 21-and-over age and research-use acknowledgment. The checklist is compiled by matching set wording. For Lab named it knew a closed list of laboratory names that left Accumark out. For the research-use row it looks for set phrases, and the 2026-08-26 entries described the acknowledgment without quoting its words, although the refund policy and the terms, both dated by the page API as last modified on 2026-06-26, already carried "purchasing for research use only" and "the research-use-only nature of these products". Both readers were widened on 2026-09-25 for all 126 records at once. Lab named now reads met on the 2026-08-26 entries as they stood, and the research-use row reads met on the wording quoted here. THE SAME CORRECTION MOVED A THIRD ROW THE OTHER WAY. Lab verifiable read met on this record and should not have. It was computed from the closing words of the 2026-08-26 sentence on the FAQ, "language about impartiality rather than about accreditation", a sentence that opens by saying no accreditation claim appears on the pages read. No accreditation for Accumark Labs is recorded anywhere in this record, and that row now reads not met. THE CERTIFICATE INDEX AND THE CATALOGUE. The 30 mg retatrutide certificate that this record found on 2026-08-26 in the product page's embedded data but not in /lab-testing-coas/ is now in the index, as the row "CP-3R 30 mg|99.52%|1051|" followed by a PDF at /wp-content/uploads/2026/09/Capstone-CP-3R-30-mg.pdf and the sample code 98B4-MA8U. AOD-9604 5 mg, whose certificate the index carried on 2026-08-26 while its product address answered HTTP 404, is now on sale: product-sitemap.xml lists /product/aod-9604-5-mg/ with a last-modified date of 2026-09-12, the /catalog/ body lists it with an Add to cart control, and the store API returns it as purchasable and in stock under SKU CAP-A005. The 200 that address now returns is not the evidence, since the invented address returned the same; the sitemap and the store API are. The index now holds 26 rows under two headings, Blends and Single Compounds, against 25 under three on 2026-08-26, and read against product-sitemap.xml, which lists 29 products, three of them reconstitution supplies, the 26 rows match the other 26 one for one by name and strength. Both index gaps in the first caution of 2026-08-26 are closed. The retatrutide listing has been renamed from GLP-3R to CP-3R. The address this record watched, /product/glp-3r-retatrutide-10-mg/, now returns HTTP 301 with a Location of https://capstonepeptides.com/product/cp-3r-10-mg/, a redirect the response attributes to the Rank Math plugin, and the store API gives that product the SKU this record read on 2026-08-26, CAP-RT10, under the name CP-3R 10 mg. The 30 mg listing, CAP-RT30, is CP-3R 30 mg, and the index rows carry the new names. The watch list now follows the new address. THE LABORATORY LINKS. Verify link now reads met on the 2026-08-26 entry, which says every certificate row links out to Accumark's own verification tool; the checklist did not know that tool's name. Today's read could not see those links: in the /lab-testing-coas/ body as the page API serves it, every certificate row is one line of text divided by vertical bars and no link to accumarklabs.com appears, the full page could not be read without submitting the entry form, and the vendor has told this publication that those links are built in the browser. The Identity Verification line on /lab-testing-coas/ still names no technique. The payment answer on /contact/ and the refund policy's chargeback clause read as recorded on 2026-08-26. The product pages' Request COA controls were not re-read.

Certificates are centralised on a single /lab-testing-coas/ page, and every entry there links out to a report hosted at accumarklabs.com's own accuverify tool rather than a locally hosted PDF, matching a per-lot sample code the page prints alongside each row. Reading that page against product-sitemap.xml (27 product URLs; the live /shop/ archive lists 28, the extra being an acetic acid diluent listing the sitemap omits) on 2026-08-26, the certificate table lists 25 rows across three groupings, Incretins, Blends and Single Compounds, giving each a purity percentage, a lot number, a PDF filename and a four-character-pair verification code. Twenty-four of those 25 rows match a currently sold peptide product one-for-one at its labelled strength. One does not: AOD-9604 5 mg is fully documented on the certificate page, purity 99.73 percent, lot 1060, code GDH8-X86G, yet no AOD-9604 product page exists anywhere in product-sitemap.xml and the /product/aod-9604-5-mg/ URL answers HTTP 404, so a certificate is published for a compound not currently offered for sale. The index is stale in the opposite direction on the benchmark compound itself: GLP-3R Retatrutide is sold in two sizes, a 10 mg vial at SKU CAP-RT10 and a 30 mg vial, but the certificate table carries only one Retatrutide row, '10 mg', purity 99.9 percent, lot 1032, code G8CR-NKMA, with no row for the 30 mg vial, even though a genuine certificate for that vial exists on the vendor's own site: the certificate-data script embedded in each page's source maps SKU CAP-RT30 to a purity of 99.52 percent by HPLC, lot 1051, verification code 98B4-MA8U, and a filename resolving to a live PDF on the vendor's server, opened and read directly during verification, a one-page Accumark Labs document for a 30.0 mg retatrutide sample reporting a 30.97 mg measured quantity with identity conforming, received May 29 2026 and published July 23 2026; the lab's own accuverify lookup for code 98B4-MA8U, reached today, renders an authenticity confirmation naming Capstone Peptides as client with the same lot, dates and purity figure. That gap sits directly against the 30 mg product page's own text, which states in its short description that the item is 'Third-party tested; Batch COA published' and repeats, inside a dedicated trust block, 'Certificate of Analysis available per batch', language identical to the 10 mg page's own copy, on a size for which the vendor's curated certificate index page shows nothing, even though the certificate itself sits in that same product page's embedded data. On both the 10 mg and 30 mg pages, the 'Request COA' control inside that trust block is a plain anchor with href="#", so in the fetched static markup it does not resolve to a document, a request form or any destination; the description text on the 10 mg page additionally claims a visitor can view this lot's own purity figure on the page; that lot figure is present in the page's static source, but only inside the same inline certificate-data script (the CAP-RT10 entry mapping to 99.9 percent by HPLC, lot 1032, code G8CR-NKMA), while the server-rendered markup itself shows only a greater than 98.0 percent by HPLC specification row and an empty certificate placeholder the script fills client-side, so a reader with scripting disabled sees the specification and the claim without the lot figure.

On the laboratory. Every certificate on this site is attributed to Accumark Labs by name, both on the /lab-testing-coas/ page and on the /about/ page, which describes it as 'an independent laboratory with no financial interest in what we sell' whose findings live as a digital record on the lab's own system rather than a document the vendor hands over. I was not able to independently reach accumarklabs.com today to confirm that description against the lab's own site: repeated attempts, against https://accumarklabs.com/ directly, against its accuverify lookup path carrying the Retatrutide sample code (G8CR-NKMA), and via the accumarklabs.net redirect that forwards into the same host, all failed at the TLS handshake stage from this environment (curl reports schannel error SEC_E_UNSUPPORTED_FUNCTION on every attempt, with and without a forced TLS 1.2 ceiling), while unrelated HTTPS fetches in the same session succeeded without issue, so the failure is specific to this one host today rather than a general network problem. What I can confirm without reaching the lab directly: Capstone's own /lab-testing-coas/ page describes a three-step verification path, opening the digital certificate directly, scanning a QR code printed on the PDF, or entering the sample code manually on Accumark's own verification page, and states that method is HPLC without naming the specific detection wavelength or column anywhere on that page; a separate line on the same page lists 'Identity Verification' among the testing methods offered but does not say what technique performs it, and no mention of mass spectrometry, LC-MS or any identity-confirming instrument appears anywhere in the text I could fetch. No accreditation claim, ISO 17025 or otherwise, appears anywhere on the Capstone pages I read; the FAQ describes Accumark only as independent and financially disinterested, language about impartiality rather than about accreditation.

Benchmark and catalog read live from the product pages on 2026-08-26, all priced in US dollars with a plain dollar sign, no currency qualifier needed. GLP-3R Retatrutide 10 mg is $90.00, SKU CAP-RT10, purity specification stated on the product page as greater than 98.0 percent by HPLC; the sibling GLP-3R Retatrutide 30 mg is $200.00. The catalog holds 28 product pages on the live /shop/ archive: 25 peptide or peptide-blend listings plus three reconstitution supplies, two bacteriostatic-water pack sizes and an acetic acid 0.6 percent 3 mL listing (product-sitemap.xml carries 27 of the 28, omitting the acetic acid page), organised into seven named research categories (Metabolic, Tissue Repair, Secretagogue, Immune, Dermal, Neuro, Vascular) plus a Reconstitution category holding the diluent. Every listing is a single vial sold by unit quantity; no kit or multi-vial bundle structure exists anywhere on the site. The /about/ page states the operating entity by name, Capstone Holdings LLC, and the terms-and-conditions page states the site is 'administered and controlled by Capstone Holdings LLC from its offices in accordance with the laws of the Commonwealth of Virginia', without ever printing a street address on any page I fetched. Shipping: US addresses only, no international service, a flat $12.99 via FedEx 2-Day, free over $100, stated across /about/ and /shipping-delivery/; the ambient (non-cold-pack) packaging reasoning, that a cold pack's condensation introduces moisture into a lyophilized powder, appears only in the FAQ accordion embedded on the /contact/ page, not on /about/, /shipping-delivery/ or the standalone five-question /faq/ page. Payment is answered directly in the FAQ accordion on the /contact/ page (the standalone /faq/ page carries no payment content): 'we accept bank transfer (eCheck) and cryptocurrency' at checkout, no credit card option stated anywhere; the bank route is handled by a named third-party processor, eDebit Direct, using Yodlee for account verification, with an ACH micro-deposit authorization step described in detail in the terms page. The return and refund policy states plainly that all sales are final, that no monetary refunds are issued under any circumstance, and that the sole remedy for a damaged, lost or incorrect order is a one-time reshipment claimed within 7 days of delivery. Contact is a single address, support@capstonepeptides.com (decoded from the site's Cloudflare email-obfuscation markup), and a single phone number, 703-679-8402, printed identically on every page footer and on the /about/ and /contact/ pages; no street address is published anywhere I fetched. The site gates entry behind a 21-and-over age and research-use acknowledgment modal on every page load.