Frequently asked questions.

No. We have never sold peptides and do not plan to. Every shop listed is an independent seller - we simply publish data about them.

No shop can pay to change its Trust Score, its place on any list, its reviews or its lab results. Links to shops carry no affiliate code, Peptigrity takes no cut of any promo code, and claiming a shop is free. If Peptigrity charges shops for anything in future, it will be optional and clearly marked, and it won't change scores, rankings, reviews or lab results.

So we can count how many buyers Peptigrity sends each shop. There is no commission and no affiliate code: the link goes straight on to the shop's own site.

No. Peptigrity doesn't recommend doses, protocols or shops, and nothing on the site is medical advice. The calculators do the arithmetic for an amount you already have, such as reconstitution, syringe units or cost, and dosage charts quote only official labelling or published studies. Members share their own experiences in the forum and in Protocol Logs; those are their accounts, not advice from Peptigrity. If you have a bad reaction, get medical help first.

The Trust Score is a number from 0 to 100 built from two inputs: community review ratings and HPLC purity from independent lab tests, weighted 50% each. Both averages are smoothed toward the platform average, so one glowing review or one great test can't carry a new shop to the top. Purity is scored in bands (99% and above, 98–98.99%, 95–97.99%, 90–94.99%, below 90%), so differences under 1% don't decide rank. Each half is also scaled by how much data is behind it: the review half reaches full weight at around 24 reviews and the lab half at around 14 tests, so a shop needs real volume in both to reach the top. Nothing else goes in: not claiming, promotions, badges, forum activity or any payment. The full formula is on the methodology page.

A Trust Score is shown only when both of its inputs exist: at least 3 published reviews and at least one lab test dated within the last 2 years. Until then the shop is marked Not scored yet, with the reason: no reviews yet, fewer than 3 reviews, no lab tests yet, no lab test in the last 2 years, or no reviews or lab tests yet. Its reviews, lab tests and purity are still shown in full. Before October 2026 a shop with only one input was given a score from that input alone, capped at 50; those numbers are no longer shown. When a Trust Score is shown.

The shop has at least one published lab test from a third-party lab, of any age. It's a fact about the record, not a grade: a shop with tests on file still needs 3 reviews and a lab test from the last 2 years for a Trust Score. Two other labels sit in the same place: Reviews only (buyer reviews, no lab tests yet) and Provisional (no reviews or lab tests yet). The shop label is not the same as “✓ Lab-verified” on a single certificate, which means that one report can be looked up on the testing lab's own public portal.

Provisional appears on a shop with no published reviews and no lab tests yet. It has no Trust Score: the shop is marked Not scored yet until it has 3 reviews and a lab test from the last 2 years. As reviews and lab tests arrive, the shop moves to Reviews only or Tests on file. Provisional says how much data there is, not how good the shop is.

Each shop review has an overall star rating from 1 to 5 and four sub-ratings on the same scale: Quality (the product and its packaging), Delivery (shipping speed and condition on arrival), Service (customer support) and Pricing (value for money). Reviewers can add a short note to each one. Sub-ratings are averaged separately and shown as bars on the shop page. They show where a shop does well or badly, and they aren't part of the Trust Score.

Each review includes a yes/no answer to 'Would you buy from this shop again?' The percentage shown on each shop profile is the share of reviewers who answered yes. This metric is tracked separately from star ratings because buyers sometimes give a 5-star review but say no to buying again (e.g., one-time need for a specific compound), or give a 3-star review but say yes (e.g., minor issues outweighed by good value).

No. No shop can pay to raise, protect or lower its Trust Score or its place on any list, and the formula is the same for every shop. Claiming a page, running a promotion, wearing a badge or posting on the forum doesn't change the score either.

The shop directory has two views. Ranked orders shops by Trust Score. By record uses no score at all: it groups shops by when a third-party lab last tested them (in the last 6 months, earlier, or no tests yet) and shows six plain facts per shop, including the last lab test, last activity, reviews and warehouse. There is no pass or fail and no colour on any value. The same six facts sit in the record block on every shop page. How the groups work.

Most are certificates of analysis that shops published on their own sites and channels, which Peptigrity's team collects and checks before publishing. Others are submitted by members (buyers, researchers and shop owners, from a signed-in account) through Submit a test, or imported from a testing lab's public certificate portal. Every test must come from a third-party lab, never the shop's own in-house lab, and every one is reviewed before it goes live. Because shops choose which certificates to make public, a shop's record shows the batches it shared, not necessarily every batch it made.

Yes. A shop can submit a certificate for its own product through the lab test form, and it goes through the same review as any other submission. The test must come from a third-party testing laboratory: in-house testing by the shop's own lab is not accepted. Tests submitted by a shop are published and labelled shop-provided, because the shop chose and sent the vial and decides which certificates to share. They count toward the Trust Score at the same weight as tests bought and submitted by customers or commissioned by Peptigrity. Who sourced the vial is shown on every lab test page so readers can weigh it themselves; it is not a scoring input.

Many shops resell batches made by someone else. The maker or wholesaler — the shop's supplier — often has each batch tested before selling it on, and the shop passes that certificate on. Peptigrity lists these as Supplier-provided. They show how the batch tested at the source, not what's in a vial bought from the shop, and they don't count toward the shop's Trust Score, averages or badges. If the lot number on your vial matches the certificate, it's the batch that was tested.

HPLC (High-Performance Liquid Chromatography) purity is the percentage of a sample that consists of the target peptide compound. A purity of 98% means 98% of the tested sample is the intended peptide, with 2% consisting of synthesis impurities, degradation products, or residual solvents.

There's no official cut-off for research peptides. As a rough guide, 98% or higher is a strong result, 95–97.99% is acceptable for most research purposes, 90–94.99% shows noticeable impurities, and below 90% means a large share of the vial is something other than the peptide. The average across Peptigrity's lab tests is about 98.5%. The Trust Score scores purity in bands, with 99% and above as the top band. A result describes the one vial the lab tested: two vials from the same batch can read differently.

When a certificate reports both the amount on the label (say 10 mg) and the amount the lab measured, Peptigrity shows the measured amount as a percentage of the label. 95–110% is shown as in line with the label, and below 95% is marked as under the label. Readings above 110% are common, often because the lab weighed the whole powder (salts and moisture included) rather than the peptide alone, so a high figure is never shown as a better result. Blends are left out of shop-wide figures because their amounts aren't comparable with single-compound vials. Details.

Endotoxins are fragments of bacteria. In an injectable product they can cause fever and inflammation, and at high levels septic shock. Certificates report endotoxin per mL or per mg, and many print the lab's own limit next to the result. For injectable medicines, the US Pharmacopeia and the FDA use a limit of 5 EU per kilogram of body weight per hour. Peptigrity marks a result as over its limit only when the certificate itself says so.

Some certificates test more than purity. A sterility test (often USP <71>) cultures the sample for about two weeks to see whether anything grows; a fail means something did. A content uniformity test (often USP <905>) measures several vials from the same lot to see whether they hold the same amount, close to the label; a fail means they vary too much or sit too far from it. Peptigrity lists both as the lab reported them, and marks a failed one on every list that shows the test. A purity figure says nothing about either.

A test passes when every result its certificate reports is inside its limit, for example endotoxin within its limit and heavy metals negative or within limits. No minimum purity is applied yet; if one is set, it will be stated on the methodology page and apply to every test at once. A result that wasn't tested counts as neither a pass nor a fail. "Passed" is a count used by the Trust card and certificate badges, not a grade of the shop.

Each certificate shows whether it has been checked against the testing laboratory's own record. '✓ Lab-verified' means the laboratory runs a public portal that looks up individual reports, and the certificate carries the report number or code to find it there. 'Unverified' means it has not been checked against the laboratory's portal yet; that describes our queue, not the shop. 'Lab has no portal' means the laboratory publishes no public lookup, so the report cannot be confirmed independently; it is not a mark against the certificate or the shop. 'Report no. not found' means the laboratory's portal returned no record for that report number. A certificate whose figures did not match the laboratory's own record is removed from the vial lookup. The status is information for the reader and does not change a shop's Trust Score.

Yes. Enter the lot or batch number printed on the vial at peptigrity.com/coa. The search ignores capital letters, spaces and punctuation. It lists the certificates on file for that lot, grouped by shop, with what the laboratory measured against the label and each certificate's confirmation status. One lot number can belong to more than one shop, so results from different shops are never merged. Placeholders such as 'N/A', cap colours and codes shorter than 3 characters cannot identify a batch, so they are not searched. Codes shorter than 5 characters are reused by different shops, so they are checked within one shop only, from that shop's page. A certificate describes the vial from that lot the laboratory tested, not the vial in your hand.

It depends on the lab and the test. Lab Prices lists each lab's own stated price for HPLC purity, quantity, identity (LC-MS), endotoxin, sterility and heavy metals, with the date and source of every figure. Peptigrity doesn't check or rank those prices, and the cheapest lab isn't automatically the best, so look at the lab's record too. The Testing Planner suggests a lab, a panel and a price for what you want to test.

It gets published the same way as a high result. Peptigrity doesn't hide, delay or edit low results, and no shop gets a pass or fail mark because of one. If the shop has claimed its page, it can answer in public on its shop board.

Anyone signed in to a Peptigrity account. We don't check purchase history, so every review shows who wrote it, when, and how many reviews that account has written. One review per shop per account. You can also review testing labs.

Yes, if the offer is for any honest review, not a positive one, and the customer ticks "This shop offered me a discount or promo to write this." on the review form. Those reviews are tagged and currently count like any other review. A reward that depends on the rating, or an incentive nobody discloses, breaks the rules, and those reviews can be removed. A shop can't write or submit a review on a customer's behalf.

Yes, within 24 hours of submission. While logged in, you'll see an Edit button on your own review card — you can update any field (ratings, comments, would-buy-again). After 24 hours the review is locked.

No. Once the 24-hour edit window closes, reviews are permanent. The only exception is if you posted to the wrong shop — contact us and we'll handle it case-by-case.

Every review is checked before it's published, against four things: it's about the shop it's posted on, it comes from a registered account, it has no personal information, threats, hate speech or illegal content, and the account hasn't already reviewed that shop. Reviews that pass are published without edits. Negative reviews are never removed, hidden or pushed down for being negative. Reviews tied to an undisclosed or rating-dependent incentive can be removed.

Yes. Every testing lab page has a Write a review button. Lab reviews rate turnaround, communication and value, and they sit on the lab's page next to its record of certificates. Peptigrity doesn't use them to score or rank the lab.

A shop board is the public conversation space on a shop's page, also listed at /discussions/shop-boards. It's where you ask a shop a question: anyone signed in can start a thread with Ask this shop, and the answer stays there for the next buyer. Only the shop's own accounts can post stock updates, new-batch threads, notices and promos, and they can pin up to 3 threads. A new-batch thread links to a lab test already on file; a board never holds certificate data of its own. Shop owners can't hide or delete other people's replies, even on their own board: they report them like anyone else, and staff decide. Reviews belong in the shop's Reviews tab, not on the board. Board activity doesn't change the Trust Score or the ranked order on /shops.

Every post by an account that has claimed a shop carries a 'Shop owner' tag with the shop's name next to the username: in discussion threads and replies, on shop boards, on review responses and on the profile. It comes from the claim record, cannot be assigned by hand and cannot be switched off. It is a disclosure, so readers know when they are reading the vendor. It is not an endorsement, and claiming a shop does not change its Trust Score.

Yes. Members may discuss any shop, compare vendors and ask which shop, which batch and what it cost. The limits: compound names only, not product brand names; discussion of hormone therapies is allowed but sourcing them is not, and no controlled substances; shop owners may post promotions, store links and discount codes only in their own shop board and on /promotions; no personal information, threats, hate speech or content involving minors. The forum is for adults (18+). The full rules are in the Content moderation section of the methodology page.

A group buy is a listing at /discussions/group-buys where an organizer coordinates a shared order and members claim slots. The slot count is public; who claimed what is never shown. Organizers need 3 or more published reviews, or the Researcher tier. Payment is arranged off-site with the organizer. Peptigrity holds no money, runs no escrow or wallets, shows payment notes as plain text with no clickable links, and vouches for no organizer. Every group buy ends with an outcome post: delivered and tested, delivered untested, seized, or organizer unresponsive. Outcomes stay on the organizer's profile as plain history. Group buys are not a Trust Score or ranking input.

Forum posts go live straight away and are moderated afterwards; reviews and Scam spotlight threads are checked before they publish. Staff can hide a thread or reply, lock or move a thread, warn a member or ban an account. Members who reach the Principal investigator tier can do the same, except banning. Hidden posts are taken out of view, not erased, so a mistake can be undone. Every action is listed on the public moderation log with the rule it was taken under, who took it and when. Moderation never changes a Trust Score, a ranking or the order of any list. If you think a moderator got it wrong, email [email protected] with a link to the post.

Two labels can appear next to a username. The rank, from Newcomer up to Legend, comes from reputation points earned by contributing: reviews, approved lab tests, protocol logs and forum posts. The researcher tier, from Research assistant up to Principal investigator, describes an account's record as it stands today and goes down if the reviews or replies behind it are removed. Neither verifies purchases or identity, and neither changes how much a review counts or any shop's score. Ranks and tiers in full.

Yes. Signed-in members can send private messages to each other, and the Message shop button on a shop's page reaches the people who manage that shop once it has claimed its page. Copy a shop's contact details only from its Peptigrity page, never from a message or reply.

A Protocol Log is a public, week-by-week record of your own protocol: what you took, how it went and any side effects. You can link your vial to a lab test on file, so the measured purity sits next to your notes. Logs are free; you need a free account to start one, and others can follow and comment. A log is the member's own account, not advice from Peptigrity. Browse logs.

A planned pool of member money that will pay for lab tests on shops picked at random. Each test starts with an anonymous retail order, the sealed vial goes to a lab whose reports can be confirmed at the source, and the result is published whatever it shows. It isn't open yet and no money is collected; it opens once the community is big enough. Shop money is never accepted. It replaces the earlier one-slot Testing Grant. Follow the fund.

The forum, shop boards and group-buy listings are for people aged 18 or over, so they ask you to confirm your age. It is a self-declaration and nothing is checked. Answering yes stores a cookie on this device for one year; if you are signed in, the answer is also saved to your account so your other devices do not ask again. Answering no takes you to the home page. Compound pages, lab tests, prices and shop listings are open to everyone and do not ask.

Sign in first. If the shop has a website, press Claim on the shop's page and tell us how we can check that you run it: an email from an address on the shop's domain, or a page on the site that links to your Peptigrity profile. If the shop has no website, use the claim page at /claim/ followed by the shop's page address and prove a contact channel instead: pick one of the shop's listed channels or add the one you control, post the exact text 'Peptigrity verification' in it from an admin account, then press 'I posted it'. There is no code and no bot; a member of our team opens the channel and confirms by hand. For WeChat, send a link to a screenshot. Claiming is free. It lets you answer buyers on your shop board and post stock, batch, notice and promo threads there, reply to reviews and messages, publish promo codes on Promotions, add shipping, warehouse and payment details, file your own lab certificates (including ones your supplier had done, which are labelled Supplier-provided) and use the badges. Up to 5 accounts can manage one shop. Claiming does not change the Trust Score, the ranking or which reviews are shown.

It means the shop's owner has proved they run the shop, manages its Peptigrity page and can reply to buyers here. It isn't an endorsement or a quality mark, and it doesn't change the Trust Score. Shops whose owners haven't claimed them show as Community-submitted.

Yes. Claimed shops can post public responses threaded under each review.

Nothing today. Claiming your shop, the shop board, badges, promo codes and replying to reviews are all free.

Yes. When adding a shop, mark it as having no website, give the shop's name and at least one contact channel, such as Telegram, WhatsApp, WeChat or Signal. A submitted shop appears once our team has reviewed it. The shop's page then lists its contact channels in place of a website link. A channel shows as 'Stated' when the shop or a submitter typed it in and nobody has checked it, and as 'Confirmed' once the shop proved control of it during a claim. For WhatsApp and Signal numbers, readers see only the last four digits. A shop without a website is scored with the same formula as every other shop: no penalty and no bonus.

Use Submit a shop. You need to be signed in to submit. Give the shop's website, or mark it as having no website and add at least one contact channel. Our team reviews every submission before the shop appears. If it's your own shop, submit it, then claim it.

No. Shops can't pay for removal or ask to be delisted. Once listed, a shop stays, with all its reviews and lab test data, so the record buyers rely on isn't lost. The only exception is a listing created in error.

No. Peptigrity doesn't score or rank testing labs. The testing labs directory is sorted by certificates on file and Lab Prices by each lab's own stated price. Each lab's page shows its record: certificates on file, stated turnaround and methods, whether its reports can be checked on a public portal, and reviews from people who used it. The average purity on a lab's page describes the samples the lab received, not the lab.

Yes. A lab can email [email protected] from its own domain to add or correct its prices, turnaround or methods. It's free, and nothing on a lab page can be paid for.