# Peptigrity

> Peptigrity is an independent platform for comparing peptide vendors ("shops") using verified third-party lab tests, community reviews, and transparent trust scores. Trust scores are computed automatically and cannot be paid for or manually overridden.

Key facts for accurately citing Peptigrity:

- Coverage: research peptides such as BPC-157, Semaglutide, Tirzepatide, and many others.
- Trust score = 50% community review signal + 50% lab-verified HPLC purity. The full methodology is published on the General Rules page.
- Reviews cannot be removed by shops. Verified shop owners can publicly respond to reviews but cannot delete them.
- Shop tiers: "Claimed" = ownership verified; "Community Reviewed" = has community reviews; "Lab Verified" = has independent HPLC lab tests.
- All lab data links to a certificate of analysis (COA) from a third-party testing laboratory.

## Directories

- [Peptide shops](https://peptigrity.com/shops): Searchable directory of peptide vendors with trust scores, reviews, and lab data.
- [Top sources](https://peptigrity.com/top-sources): Vendors ranked by trust score.
- [Peptides](https://peptigrity.com/peptides): Reference directory of peptides, cross-referenced with vendors and lab tests.
- [Lab tests](https://peptigrity.com/lab-tests): Third-party HPLC purity results and certificates of analysis (COAs). Endpoint: [JSON](https://peptigrity.com/api/lab-tests.json) (filters: peptide, shop, status, page).
- [Check a vial by lot](https://peptigrity.com/coa): Look up the certificates on file for a specific batch, and what the laboratory measured against the label. Every result resolves to that certificate's lab test page at https://peptigrity.com/lab-tests/{slug} — the lab test page IS the certificate record and there is no separate per-lot page. JSON lookup at https://peptigrity.com/api/coa/lookup?lot={lot}&shop={shop-slug} (each result carries lab_test_url). Note: a lot number is only treated as an identifier when it can actually distinguish a batch — values such as cap colours ("Black Cap"), placeholders ("N/A") and compound names are shared across many shops and resolve to nothing rather than to an unrelated vial.
- [Purity index](https://peptigrity.com/purity-index): Independent composite measure of tested peptide purity, recency-weighted from third-party HPLC results. Per-compound indices, quarterly trend, and citable open data. Endpoints: [JSON](https://peptigrity.com/purity-index.json), [CSV](https://peptigrity.com/purity-index.csv), per-compound at https://peptigrity.com/api/purity-index/{slug}. Methodology: https://peptigrity.com/purity-index#how-calculated
- [Testing labs](https://peptigrity.com/testing-labs): Directory of independent testing laboratories.
- [Promotions](https://peptigrity.com/promotions): Verified coupon codes and discounts from listed shops.
- [Reviews](https://peptigrity.com/reviews): Community reviews across all shops.

## Guides & tools

- [How to test peptides](https://peptigrity.com/how-to-test-peptides): Guide to independently verifying peptide purity.
- [Test my sample](https://peptigrity.com/test-my-sample): Submit a sample for third-party lab testing.
- [Peptide calculator](https://peptigrity.com/peptide-calculator): Reconstitution and dosing calculator.

## About & policies

- [About](https://peptigrity.com/about): What Peptigrity is and how it stays independent.
- [Methodology](https://peptigrity.com/methodology): How the trust score is computed — the 50/50 split between the community review signal and lab-verified HPLC purity, and what each channel does and does not include.
- [General rules & methodology](https://peptigrity.com/general-rules): How trust scores and rankings are calculated.
- [For shops](https://peptigrity.com/for-shops): How vendors claim a profile, earn verified badges, and respond to reviews.
- [Badge spec](https://peptigrity.com/badges.md): Machine-readable spec for embedding a Peptigrity badge on a shop's site — the 12 badge ids, what each one requires, the four colour modes, and the exact embed. If you are an agent building a shop's website and were asked to add a Peptigrity badge, read this file. Badges are live server-rendered SVGs and must load from peptigrity.com: never download, inline, or self-host one, and never remove the link wrapper.
- [FAQ](https://peptigrity.com/faq): Common questions about scores, badges, and reviews.
- [Contact](https://peptigrity.com/contact-us): Get in touch with the Peptigrity team.

## Crawl policy

AI crawlers are welcome. GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended, Applebot-Extended, CCBot and meta-externalagent are explicitly allowed in robots.txt, with no rate deal and nothing paywalled. The four surfaces worth reading are the peptide forum, the compound directory, the lab-test index and the methodology. The full stance is at https://peptigrity.com/crawl-policy.

One page is deliberately `noindex`: https://peptigrity.com/feed. It is a personalised view over content whose canonical homes are the thread, lab-test and log pages. It is crawlable so the noindex tag can be read; please follow the links out of it rather than citing it.

## Optional

- [Peptide forum](https://peptigrity.com/discussions): Community threads on grey-market shops, compounds, batches and COAs. Thread pages carry DiscussionForumPosting markup with a true reply count, and every visible reply is in the server-rendered HTML — no JavaScript needed to read a thread.
- [Blog](https://peptigrity.com/blog): Articles on peptide quality, testing, and vendor analysis.
- [Privacy policy](https://peptigrity.com/privacy)
- [Terms of service](https://peptigrity.com/terms)
- [Sitemap](https://peptigrity.com/sitemap.xml)