Frequently asked questions

Peptuvia is a research peptide marketplace. Instead of being one vendor with one price list, we list multiple vetted independent sources for each compound so you can compare them on price, shipping origin, and published lab results — then buy from whichever one you prefer. We send samples to independent US analytical labs ourselves, and we publish lab results pass or fail; a result is never left out because it failed. We don't test every batch, so a result is evidence about the production run it was taken from rather than a blanket claim about the catalog.

Two differences. First, we're a marketplace, not a reseller: you see several sources per compound with their prices side by side, rather than a single marked-up price. Second, the quality data is checkable rather than asserted. Some results are tests we commissioned and submitted to the lab blind. Others are certificates the source supplied — those go up only once we can confirm the document against the issuing lab, usually on the lab's own verification site, and many published results carry a link so you can pull the lab's copy instead of trusting ours. Either way it gets published whether it passes or fails.

Most US peptide brands buy from the same class of overseas manufacturers that supply the sources listed here, then resell at roughly 10–12× that price. You're paying for a domestic middleman, not a different molecule. Buying through the marketplace removes that layer: you pay close to source pricing plus our marketplace margin.

No. Peptuvia never manufactures, takes title to, or physically handles inventory. Orders are fulfilled and shipped by the independent sources — many of them from their own regional warehouses in the US, UK, EU (Germany), Australia, and Canada. We handle the storefront, the order, the payment, the lab relationships, and support.

No. Checkout works as a guest — you only need an email address and a shipping address. Creating an account is optional and just adds order history and a saved shipping address. Either way you can look up any order with its order number and the email you used at checkout.

Check the receipts rather than taking our word for it. Lab results are published pass or fail in a public COA library, each with its verification code, the testing lab, and the date. Most of them link to the issuing lab's own site, so you can confirm the certificate at the source rather than trusting our copy of it. Several of our sources also carry independently published track records on third-party databases like Finnrick and Janoshik, which we don't control. And every order ships with tracking you can follow from dispatch to delivery.

A COA is the lab document that says what is actually in a specific production run. A useful one reports four things: the identity of the compound, its purity as a percentage, which production run it applies to, and the date and name of the lab that ran the analysis. How the run gets identified varies by manufacturer — some print a lot or batch number, but many mark a run only by the colour of the vial caps. What separates evidence from marketing is that the certificate names a real run and a real lab: one with no run, no date and no named facility can be reused to sell anything.

Check four things in order. Identity: mass spectrometry should confirm the molecular weight matches the target peptide. Purity: the HPLC figure, where 98% or higher is a pass. Which run it covers: a lot or batch number where the manufacturer assigns one, and otherwise whatever marks the run — usually the cap colour, since most sources don't print a code at all. Test date and lab: recent, and from a named independent facility rather than the manufacturer's own QC.

They answer different questions. HPLC (High-Performance Liquid Chromatography) separates the sample and measures how much of it is the target peptide versus impurities — that's where the purity percentage comes from. Mass spectrometry measures molecular weight to confirm the compound is the peptide it claims to be. A 99% purity number means nothing if the identity is wrong, which is why a credible COA carries both.

It's the HPLC peak area for the target compound relative to everything else detected in the sample. We treat 98% or higher as a pass. If an independent lab test of your batch comes back under 99% purity, we reship it free or refund the order — your choice.

Purity tells you what fraction of the powder is the target peptide; net content tells you how many milligrams of it are actually in the vial. A vial can be 99% pure and still be under-filled against its label. Where the lab measures it, we publish net peptide content in mg alongside the labeled amount, so you can see whether a batch is short, on-label, or over-label.

Search the verification page. It takes our verification code for a result (shown in the test history on the product page and in the COA library — ours, not something printed on your vial), the lab's own code from the certificate, a batch code where your source prints one, a lot or cap colour, or simply the product or the vendor you bought from. It lists every result we publish that matches, grouped by product, and says plainly when we publish none. Each result opens in full — purity, identity, net content where measured, the lab, and the date — plus the COA itself where a PDF is available, and for some results a link to the issuing lab's own copy. Every published result has its own URL at https://peptuvia.com/verify/<verification-code>, so it can be cited and shared. A result covers the lot it names and nothing else.

There's a good chance your kit doesn't carry one. Only some of our sources print a traceable batch or lot number on the kit — they're badged in the vendor directory — and the rest separate production runs by the colour of the vial caps, or don't mark them at all. Ulevity, Mycelia, Genesys and PGB also publish a COA for every product they list, naming the batch it covers. The codes on this site are our own verification codes, one per published result, shown in the test history on each product page and in the COA library. If your kit has no number on it, search the verification page for the product or the vendor you bought from instead, and compare the lot or cap colour named on each certificate against what arrived. Your order page also says, for each item, whether we publish a result for that source and size — and which lot it covers.

Faking one, no — and the cherry-picking question deserves a straighter answer than most sites give. Some results are tests we commissioned and submitted blind, so they come back from the lab with no vendor involved. Others are certificates a source handed us, and those we publish only after confirming the document against the issuing lab, normally through the lab's own verification page — a doctored PDF doesn't survive that. A customer who has a vial tested can send us the result too; it goes through the same check against the issuing lab, and it's labelled customer-submitted everywhere it appears, so you can always tell which results we didn't pay for. What we can't do is compel a source to send us a result it would rather sit on, which is why we publish results pass or fail — a result is never left out because it failed — and why a COA is best read as evidence about the run it names rather than a verdict on the vendor. The results we publish for a compound sit on its product page.

Batch-specific. Each published result is the analysis of an actual production run — deliberately different from the industry-standard stock COA, a certificate from a sample sent off months ago and reused to market every batch since. How tightly that run can be identified depends on the manufacturer: where the COA names a lot we publish it verbatim, and where the source marks runs by cap colour instead, that's what there is to go on. The flip side is worth stating plainly either way: a COA covers the run it was taken from and nothing else. Vendors ship thousands of kits and restock continuously, so there's no guarantee your order comes from the tested run.

It gets published anyway, flagged for review rather than quietly dropped — a result is never left out because it failed — and it sits in that product's test history and the COA library alongside the passing ones. For your order, a failure is covered: if an independent test of your batch comes back under 99% purity, we reship it free or refund the order — your choice.

Every result is shown against the source and the size it was taken from — never as a grade for the product as a whole, since one source's certificate says nothing about another source's vials. On a product page, the buy box describes the source and size you have selected: the result we publish for exactly that source and size if there is one, with the lot it names and its test date; otherwise which size, or which other source, a result belongs to — or that there is none. Each source row says the same for its own line, and catalog cards count how many of a compound's sources have a published result. A “Batch-Matched COAs” badge on a source row is different: it describes the vendor's practice — a COA for each product it lists — and the row's own line still says what we publish for that size. Certificates we publish and results a vendor reported to us are labelled separately. Either way, a result covers the lot it names, and your order may ship from a different lot.

Each certificate we publish is the lab's own document, and the COA library shows the lab named on it; where our record doesn't name the lab, the card says so. Our testing page lists the labs named on the certificates we publish, with how many of each lab's certificates the library holds. Each certificate covers only the lot it names.

HPLC purity and mass-spec identity are the standard panel, and that's what the results published here report. Some certificates also report an endotoxin (LAL assay) or heavy-metal (ICP-MS) result; where one does, it shows on that lot's verification page next to the purity figure.

No, and we'd rather say so than imply otherwise. We list over a hundred products from more than twelve vendors, stock sells out and gets replaced quickly, and we don't control which production runs a vendor samples — so a COA on every batch from every source isn't something we can promise. Most sources don't even number their batches, which is part of why per-batch coverage isn't a thing anyone could hold us to. What we do commit to is publishing lab results pass or fail: a result is never left out because it failed. Treat a COA as evidence about the run it names rather than a guarantee covering everything we sell. The product page shows the test history we publish for a compound; the COA library shows every result we publish.

Ulevity, Mycelia, Genesys and PGB. Each publishes a third-party COA for every product it lists, naming the batch it tested, and prints a batch number on the kit, so you can compare the number on your kit with the batch the COA covers. They're badged “Batch-Matched COAs” on product pages, in the catalog filters and in the vendor directory. For Genesys and PGB we link the full certificate on the lab's own site; for Ulevity and Mycelia we publish the results — batch, purity and measured content — rather than the document, because their certificates identify the vendor. Most other sources do neither, so if a COA you can match to your kit matters for your work, choose one of these vendors before you order. Each COA still covers only the batch it names: vendors restock continuously, so there's no guarantee your order ships from the tested batch.

It's normal, and it isn't a sign anything is wrong with your order. A COA covers the lot it names. Vendors restock continuously and we don't control which runs get sampled, so a later production run often ships without a certificate of its own — that lot simply hasn't been tested, which is why we don't promise per-batch coverage anywhere on this site. A cap colour that doesn't match the one on the certificate means the same thing, and it's the more common case: most sources mark their runs that way rather than with a printed lot code. If a published COA matters for what you're doing, check the COA library before ordering to see exactly which lots we publish results for, or order from one of the vendors badged “Batch-Matched COAs”, which print a batch number on the kit and publish a COA for every product they list, so you can see whether your kit's number is the tested batch — it may not be, since each COA still covers only the batch it names. You're also free to send a vial to any independent lab yourself — send us the certificate and it goes into the library like any other, labelled customer-submitted, whichever way the numbers read.

Nothing stops you, and we'd encourage it — send a vial to any independent analytical lab. If we publish a certificate for that lot, you can compare the two in the COA library; we don't test every batch, so we may publish none. Routing an order through a lab as a checkout add-on is switched off, so orders ship direct, and we publish lab results pass or fail. If you have a specific testing need, email us and we'll point you at a facility.

Find the compound in the catalog, pick a source from the list on the product page — they're compared on price, shipping origin and, where a result is published, purity — add it to your cart, then check out with your shipping address and payment method. You'll get an email confirmation once payment is detected.

Every price on the site is in US dollars (USD) — products, shipping and gift card balances alike. That holds wherever you are and whichever regional warehouse fills your order: a warehouse in Australia, Canada, the UK or the EU changes where the parcel is sent from, not the currency it is priced in. We don't price or charge in any other currency. Cash-app and crypto payments alike settle against the same USD total. Product pages and the cart can also show a rough figure in your own currency, rounded up to allow for typical card conversion costs. It's a guide only: you're charged the USD amount, and your bank or payment provider sets the exchange rate.

Apple Pay, plus cash and bank apps through a hosted checkout — Venmo, Zelle, Cash App, Wise, Revolut, N26 and PayPal — and self-custodial crypto (USDC, USDT). We don't take credit or debit cards or Google Pay. Apple Pay is available to US buyers, up to $500 a week. Gift cards and store credit can be applied to any order. The exact list live at any moment is shown on the checkout page.

No. Plenty of orders are paid with Apple Pay, Venmo, Zelle, Cash App or Wise, and no wallet is involved. Crypto is offered because it's fast, cheap and self-custodial, not because it's required.

Paying by cash app routes through a third-party provider that charges its own fee, and that fee is shown before you confirm — it's never added silently after the fact. Paying in crypto has no provider fee; you only pay the network's own transaction cost.

Crypto payments are self-custodial: you send from your own wallet or exchange to the address shown, and we detect the payment on-chain. We don't accept cards, so there are no card details to hold. Cash-app payments are handled by the provider on their own hosted page, and there's no KYC with us.

As soon as your payment is detected, automatically — you'll get a confirmation email with your order number. An order that's never paid is cancelled automatically after 48 hours, so nothing sits pending indefinitely. If you started a payment and something went wrong, reply to the confirmation email or contact support and we'll sort it out.

Get in touch immediately with your order number. Before an order is forwarded to the source we can usually change the address or cancel it. Once the source has dispatched it, we can't recall or modify the parcel.

We don't run public coupon codes. Discounts come from referral codes instead: every customer gets a personal one after their first order, and anyone who uses it gets 10% off while the person who shared it earns commission. One code per order, applied to the product subtotal (never to shipping).

Yes. Gift codes start with GIFT- and apply to your whole order total, including shipping. If the card is worth more than the order, the remainder stays on it for next time. You can check any card's remaining balance at any point.

Enter your order number and the email you used at checkout on the tracking page, and you'll see live status — payment, dispatch, and the tracking number as soon as the source provides it. Tracking numbers are emailed too. Published lab results aren't tied to your order, since most kits carry no batch number to match against; look your product up in the COA library to see which runs we publish results for.

Out-of-stock offers show a "Notify me" option on the product page. Leave your email and you'll get a message the moment that source restocks. Often another source in the same list has it in stock right now, so it's worth checking the alternatives before waiting.

Email us with the compounds and quantities you need and we'll check pricing and lead times with the sources directly. Larger orders often route differently than a standard cart, so it's worth asking first.

It depends on the source you pick. Many ship from their own regional warehouses in the US, UK, EU (Germany, the Netherlands, Italy), Australia, or Canada, so the parcel is a domestic delivery. Others ship direct from the manufacturer. Each product page shows the origin for every source, and you can filter the list by region.

Sources shipping from an in-region warehouse typically deliver in about 2–7 days. Sources shipping direct from the manufacturer usually take 12–21 days. The estimate for the specific source you've chosen is shown on the product page and again at checkout.

It's set per source, because each one ships its own parcel from its own location. Rates start around $15–$20 flat from a regional warehouse, and many sources waive shipping once their own product subtotal passes a free-shipping threshold — commonly $800, though it varies by source. You'll see the exact figure for each source in your cart before you pay.

Because your cart included products from more than one source, and each ships its own parcel with its own shipping fee and its own timeline. If you'd rather have one parcel and one shipping charge, consolidate the cart onto a single source — the cart flags this when it applies.

Coverage varies by source, since each sets its own export restrictions. The country checker lists exactly which vendors deliver to your country, and checkout blocks any source in your cart that can't ship to your address before you pay.

Every order ships tracked. If a parcel is lost in transit, contact support with your order number and we'll reship it or refund the order. Once the carrier records a parcel as delivered we can't refund or replace it — if a delivered parcel isn't with you, ask your local carrier depot to check the GPS coordinates on the delivery scan, which often places it at a nearby address.

Most listings are kits containing multiple vials of lyophilized (freeze-dried) powder. Each product page shows the milligrams per vial, the number of vials in the kit, and the price both per vial and per kit, so you can compare against vendors that quote single vials.

No. The vials ship unlabeled: nothing on a vial names the compound, its strength, a SKU or a lot. Where a source prints a batch number, it's on the kit's packaging, not on the vial. When an order holds more than one product, keep track of which vial is which as you unpack — mark each one yourself, or photograph it next to its packaging — before you throw the packaging away.

That's the marketplace part. The same molecule is available from more than one vetted source, each with its own price, shipping origin and delivery time — plus a published purity history where one exists. Rather than picking for you, we list them side by side so you can weigh cost against speed and track record.

No. Everything sold here is a research chemical for in-vitro laboratory study, and we don't publish dosing, protocols, handling instructions, or anything that could be read as medical guidance. Our content covers analytical quality, verification, and the underlying science.

They're the same molecules, generally made by the same class of manufacturers that supply US resellers. The difference is what you pay and what you can verify: our purity and identity numbers are published per test, with the lab named and the production run identified as precisely as the manufacturer labels it, rather than asserted on a label.

If an independent lab test of your batch comes back under 99% purity, we reship it free or refund the order — your choice.

Because these are research chemicals, delivered goods can't be returned once they're out of our hands — with one exception: a documented quality failure. If a batch fails on purity or identity, we arrange a replacement or a full refund.

For most sources, any competent independent lab. One is stricter: Ulevity — every one of its warehouses (US, EU, UK, Australia, Canada and international) — recognises Janoshik results only. If you have a vial tested and want a replacement from it on quality grounds, the report has to come from Janoshik, and the testing fee is refunded when it turns up a problem. Reports from other testing agencies aren't accepted for a claim on Ulevity, so check before you pay a lab for one. This doesn't narrow our own purity guarantee, which stands on an independent test of your batch coming back under 99% whoever ran it. Either way, send us the certificate — we publish lab results pass or fail.

Tracking can sit quiet for a few days between scans, especially on an international leg. If it's been longer than the estimate you were quoted, or the tracking hasn't moved in several days, contact support with your order number and we'll chase the source and the carrier directly.

Email support with your order number and photos of what arrived, including the packaging. That covers a broken or leaking vial, a wrong item, and anything missing from the kit: we take it up with the source and arrange a replacement or refund, so you don't have to negotiate with the vendor yourself. How the powder inside an intact vial looks is a separate question — see the next answer.

No. Lyophilized peptide is a fragile cake, and a vial that crosses an ocean by air and road is shaken the whole way — the powder often breaks up, slides down the wall of the vial, or arrives as loose flakes rather than an intact disc. Please note that if the powder's appearance is damaged due to transportation vibration or other reasons, we do not provide any refund or replacement. Appearance is not a measure of what's in the vial; a test result is. A broken or leaking vial, a missing item, or a batch that fails on purity or identity is a different matter, and those we do act on.

Use the support form or email hello@peptuvia.com. Order questions get routed straight to the team handling your shipment, so include your order number if you have one. We reply by email.

No. Everything sold here is a research chemical intended for in-vitro laboratory study only. These products are not drugs, supplements, foods, or medical devices, and are not for human or veterinary use. Nothing on this site is medical advice.

No. Nothing on this site has been evaluated by the U.S. Food and Drug Administration, and no product is intended to diagnose, treat, cure, or prevent any disease. Peptuvia is a chemical supplier — not a compounding pharmacy under section 503A, and not an outsourcing facility under section 503B.

You must be at least 18 and legally permitted to purchase research chemicals where you live.

That depends on your jurisdiction, and it's your responsibility to check — we can't give legal advice. What we can tell you is that sources set their own export restrictions, so checkout will block any source that can't legally ship to your country.

We collect what's needed to fulfil and support your order — email, shipping address, order history — and pass the shipping details to the source that's actually sending your parcel. We never see or store card numbers. The privacy policy covers what's kept and for how long.

We run one, but it's closed to new signups at the moment — we're not handing out codes on request. Codes already issued keep working exactly as before: your audience gets 10% off, commissions still pay out on every order including reorders, and the dashboard link in your welcome email still opens. If you'd like to be considered when it reopens, email support rather than signing up.

Yes. After a delivery is confirmed we email you a review link for that order, so reviews are tied to real purchases rather than open to anyone. Ratings are published per source on the product pages, which is what makes them useful when you're choosing between vendors.