Vendors

Storefront verified live. Re-checked 10 September 2026: its product pages publish Product and Offer structured data, which is now read for prices. Products are served straight off the site root rather than under a product path.

Storefront verified live on 10 September 2026. No product API found; prices are read from the Product and Offer structured data published on its own product pages.

Storefront verified live on 10 September 2026, but its Store API refuses anonymous clients and its sitemap lists no product URLs, so no price observations are collected.

Storefront verified live on 10 September 2026 and it names research peptides for sale, but it publishes no structured product endpoint and its sitemap lists no product URLs, so no price observations are collected.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available. Its sitemap lists no product URLs, so the Store API is the only readable route.

Storefront verified live. Publishes a public WooCommerce Store API, which VialPost reads for structured price observations.

Storefront verified live. robots.txt sets Crawl-delay: 10, which the price fetcher honours. Re-checked 10 September 2026: it does publish a public WooCommerce Store API after all, and that API is now read for prices.

Storefront verified live on 10 September 2026. Catalogue spans SARMs and research chemicals as well as peptides; only peptide vials are recorded here. Public WooCommerce Store API available.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live on 10 September 2026. Its robots.txt disallows every URL carrying a query string, which rules out the Store API, so prices are read from the Product and Offer structured data on its product pages.

Storefront verified live at certifiedpeptides.net; certifiedpeptides.com does not resolve. Re-checked 10 September 2026: its Store API answers but returns an empty product list to anonymous requests, and its sitemap index carries only post, page and category sitemaps — the sole post being the WordPress default. No catalogue is readable.

Storefront verified live. Public WooCommerce Store API available.

Storefront verified live. Its robots.txt permits the WooCommerce Store API and carries Content-Signal: search=yes, which is the use this site makes of it. On 10 September 2026 that API began answering HTTP 403 to automated clients and has not recovered, so the previously collected rows were removed rather than left to go stale. The collector still asks once a day.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live. Public WooCommerce Store API available.

Storefront verified live on 10 September 2026, but it publishes no structured product endpoint and its sitemap lists no product URLs, so no price observations are collected.

Storefront verified live on 10 September 2026. Its Store API refuses anonymous clients, so prices are read from the Product and Offer structured data published on its own product pages.

Storefront verified live on 10 September 2026 through its own Store API. On every subsequent request that API answered HTTP 403 to automated clients, so no catalogue could be read for prices. Recorded as trading, with no price data.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live. Re-checked 10 September 2026: it runs on BigCommerce, whose storefront products endpoint refuses anonymous clients here, and its product-page Offer markup carries an empty price string because the prices live on client-side variant data. No price is readable, so none is recorded.

Storefront verified live on 10 September 2026. Its Store API requires authentication, so prices are read from the Product and Offer structured data published on its own product pages.

Storefront verified live at midwestpeptide.com (singular). Re-checked 10 September 2026: no product API, but it publishes Product and Offer structured data on its product pages, which is now read for prices. Several listings state the vial mass only in the product URL.

The storefront serves a bot-check interstitial to non-browser clients, but its own public WooCommerce Store API answers normally and is the source of both the verification and the prices.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Re-checked 10 September 2026. The domain resolves but every request, robots.txt included, returns HTTP 202 with a redirect to a bot-check endpoint rather than any page content. The storefront could not be verified by automated fetch and no data is recorded from it.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live on 10 September 2026. Its robots.txt disallows the WooCommerce Store API, and its 37 product pages publish JSON-LD but no Product or Offer node, so there is no price to read. Recorded as trading, with no price data.

Storefront verified live. Public WooCommerce Store API available.

Storefront verified live. Public WooCommerce Store API available.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live on 10 September 2026. Catalogue spans SARMs and research chemicals as well as peptides. Public WooCommerce Store API available.

Storefront verified live on 10 September 2026. No product API found; prices are read from the Product and Offer structured data published on its own product pages.

Storefront verified live. Re-checked 10 September 2026: it publishes Product and Offer structured data with a readable price, but states no vial mass in the product title, the offer, or the product URL for any listing. Without a mass there is no per-milligram figure to compute, so no observation is recorded.

Storefront verified live. Publishes a public Shopify product feed, which VialPost reads for structured price observations.

Storefront verified live on 10 September 2026. Answers its own public WooCommerce Store API to anonymous clients, which is where its price observations come from.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available. Its sitemap lists no product URLs, so the Store API is the only readable route.

The storefront returns HTTP 403 to non-browser clients, but its public WooCommerce Store API responds normally and is the source of the price observations recorded here.

Storefront verified live on 10 September 2026. Its Store API refuses anonymous clients, so prices are read from the Product and Offer structured data published on its own product pages.

Storefront verified live on 10 September 2026. Catalogue spans SARMs and nootropics as well as peptides; only peptide vials are recorded here. Its robots.txt disallows every URL carrying a query string, which rules out the Store API, so prices are read from the Product and Offer structured data on its product pages.

Storefront verified live on 10 September 2026. Public WooCommerce Store API available and read for prices.

Storefront verified live on 10 September 2026. Its robots.txt disallows the WooCommerce Store API, and its 90 product pages publish JSON-LD but no Product or Offer node, so there is no price to read. Recorded as trading, with no price data.

Storefront verified live. Two independent blocks, both re-confirmed 10 September 2026: its robots.txt disallows every URL carrying a query string (Disallow: *?), which is what any product API needs, and its host answers automated clients with an Imunify360 bot-protection 403 on robots.txt, the sitemaps and every product path. No price observations are collected.

Storefront verified live. Publishes a public WooCommerce Store API, which VialPost reads for structured price observations.

The storefront serves a bot-check interstitial to non-browser clients, but its own public WooCommerce Store API answers normally; that API is both the verification of the catalogue and the source of the prices recorded here.

Storefront verified live on 10 September 2026, but it publishes no structured product endpoint and its sitemap lists no product URLs, so no price observations are collected.

Jun 1, 2025 — FDA agents are reported to have raided the Amino Asylum warehouse, after which the site went offline overnight. Reported date is June 2025; a more precise day is not given by the source.

Sep 8, 2026 — Chemyo permanently closed. The company's notice states that all orders placed before 8 September are unaffected and will be fulfilled, that chemyo.com is its only official website, and that Chemyo no longer accepts payments through any website, person or entity.

Jul 30, 2026 — The founder of Paradigm Peptides is reported to have been sentenced to 70 months in federal prison with a $5 million forfeiture, in a case involving mislabelled compounds and forged certificates of analysis.

Mar 6, 2026 — Peptide Sciences posted a short shutdown notice with no advance warning, reported as citing FDA enforcement and litigation exposure.

Jan 27, 2026 — Science.bio announced it would permanently close and discontinue the sale of research products. Its notice warns that any website, entity or individual claiming to be Science.bio or a successor is unauthorised.

Jul 1, 2026 — StrateLabs posted a sitewide closure notice, citing a regulatory landscape that had shifted in ways that made continued operation impossible. Pending orders were to ship or be refunded automatically; order history and COAs were removed and the site is stated to be going offline.