Frequently Asked Questions

Yes. The shop is open to registered researchers. You sign in with your email address (a one-time code, no password), complete a short researcher profile once, and confirm that you are 21 or older and buying for in vitro laboratory research. It takes about two minutes, and it is how the shop stays a shop for laboratories. Sign in or create an account.

By Cash App, or by check. The checkout shows the exact amount and the note to include so your payment is matched to your order; you receive an email when it is confirmed, and the order ships from there. A check order ships once the check has cleared. We do not take cards at present.

Orders whose payment is confirmed before 2 PM Central on a business day ship the same day. Later orders ship the next business day. The tracking number is emailed to you the moment the label is created, and your order history shows it too.

Four options at checkout, priced by option rather than by weight: SpeedShip ground ($8.95, free on orders of $200 or more, 3 to 4 business days), Priority ($18.95, or $8.95 at $200 or more, 2 to 3 days), Priority Express ($47.95, 1 to 2 days) and Next Day Air Early ($127.95). Signature on delivery or hold for pickup is available on request before the order ships. Lyophilized peptides travel at ambient temperature; the dry solid is stable in transit for far longer than a shipment takes, so there is no cold chain and no ice pack to thaw in a mailbox. How lyophilized peptides hold up, and what actually degrades them.

No. We ship to addresses in the United States only. Puerto Rico and Guam are served case by case; we do not ship to freight forwarders, mail-forwarding services or APO/FPO/DPO addresses, and products may not be exported. An order with an address outside the United States is canceled and refunded.

For some customers near us, yes. When local delivery is available for your account and address it appears as an option at checkout, with no label and no carrier.

Damaged on arrival: write to us within 72 hours of delivery with photographs of the outer packaging, the inner packaging and the vials, and we will replace the material or refund it. That applies to every order, with or without Shipping Protection.

Lost in transit or delivered to the wrong address: optional Shipping Protection, added in the cart, gets you a reshipment once the carrier confirms the package is lost (no delivery scan, at least ten business days) or misdelivered. Without it, title passed when the carrier accepted the package (FOB origin), so the claim is with the carrier; we supply the shipment documentation within five business days.

Delivered according to the tracking, then missing: not covered either way; that is a carrier claim and, if you suspect theft, a police report. Signature on delivery, requested before the order ships, is the simplest protection for a larger order.

The Shipping Policy is the controlling document; this answer summarizes it.

You can cancel before the order ships: write to [email protected] with the order number. Once a label has been created it cannot be canceled. Because these are research chemicals, all sales are final and we do not accept returns, except as the law requires or where we shipped the wrong thing, which we put right.

On the price list: every product and size on one page, with the price per milligram and the certificate of analysis for the lot on sale. It reads from the catalog, so it is always current. Testing is included in every price.

Yes, for laboratories, institutions and resellers who order regularly: see institutional accounts. Discount codes for everyone else are announced in the banner at the top of the site.

The lot number is printed on the label. Every product page shows the lot on sale, its HPLC purity and a View COA button that opens that lot's certificate, and orders are allocated from that lot by the system that tracks every vial from receipt to dispatch (patent pending). So the certificate you see before you order is the certificate for the vial you receive; when a lot sells out, the page changes before the next order does. Match the lot on your label to the lot on the certificate; if they differ, tell us.

Three things, each measured by an independent laboratory after we receive the lot and before it is offered: identity by mass spectrometry (the observed mass against the expected one), purity by HPLC with the chromatogram, and net peptide content. The laboratory's name is on the letterhead. How to read a certificate of analysis walks through every field.

Purity says what fraction of the peptide-like material is the right peptide. Net peptide content says how much of the powder in the vial is peptide at all: counter-ions, water and salts can be a fifth of the weight. A "99%" purity figure on its own tells you nothing about the second number. Both are on our certificates. Is a 99% pure peptide 99% peptide? explains the arithmetic.

Open the certificate, take the ions it reports, and paste them into Mass Match: it tells you whether they fit the sequence and which charge states and adducts they are. The peptide calculator gives the expected mass, formula and ions for any sequence, and every compound's reference entry lists what its certificate should show. The tools work on any supplier's certificate, not only ours.

The measured purity of the lot on sale is on the product page, next to the lot number. It is a measurement of that lot, not a specification, and it depends on the method, which the certificate states. Is purity the same by every method? explains why two laboratories can report different numbers for the same vial.

We do not name the manufacturer on the site. What we publish is what we can stand behind ourselves: every lot is tested by an independent laboratory after we receive it and before it is offered for sale, and the certificate for the lot on sale is open on the product page before you order.

Yes, two: BPC-157/TB-500 and GLOW (BPC-157, TB-500 and GHK-Cu). A blend is handled like every other product here: the composition is stated by component, the lot on sale shows its verified quantity of each component, the certificate for that lot is on the page, and each component has its own reference entry linked from the page. The product monograph works through the chemistry of the mixture, including how a certificate for a blend is read differently from one for a single compound.

Synthetic peptides are normally isolated as trifluoroacetate salts, which is the form you should assume unless the product page or certificate states another. The salt form changes the weight of the powder, not the peptide: peptide salt forms explains what that means for weighing and for cell-based work.

In the sealed vial, at −20 °C or colder, dry and in the dark; for storage beyond six months, −80 °C. Let a vial reach room temperature before opening it, so that moisture does not condense on the powder, and avoid repeated warming and cooling of the same vial.

Stored dry and cold, most lyophilized peptides are stable for one to two years from manufacture. Sequences containing methionine, tryptophan or cysteine are more prone to oxidation and keep less well; sequences with aspartate–glycine or asparagine–glycine pairs can rearrange slowly even in the solid. What actually degrades a peptide and are freeze-dried peptides stable forever? cover the chemistry.

A lyophilized peptide may be a loose white powder, a compact cake or a thin film on the glass; all are normal and none says anything about purity. Does a clean-looking powder mean a clean peptide?.

In vitro laboratory research only: assays, analytical method development, characterization, reference-standard preparation and quality-control work in a laboratory. They are not for use in people or animals, not for diagnosis, not drugs, foods, cosmetics or supplements, and have not been evaluated or approved by the FDA for any purpose.

No. We do not answer questions about amounts, schedules, preparation, effects or safety in people or animals, or about combinations or personal goals, and the answer is the same for everyone. We are glad to help with certificates, analytical questions, laboratory storage and handling, and orders. Why we don't answer these questions sets out the reasoning in full.

No. We sell research peptides and laboratory solvents, nothing for use in a person or an animal, and we give no instructions for any such use. An inquiry that makes such a use clear is declined, and the order with it.

A chemical supplier of research materials. We are not a compounding pharmacy or compounding facility under section 503A of the Federal Food, Drug, and Cosmetic Act, not an outsourcing facility under section 503B, not a pharmaceutical manufacturer and not a medical provider. The full statement is on the terms and policies page.

The purchaser, for the laws that govern buying, holding and using research chemicals where they are. Our responsibility is the material and its record: what we say it is, tested as we say it was tested, documented so that you can check.

Email [email protected], or use the contact form. A person reads it and a person answers, usually the same business day. Include the order number or the lot number if your question is about one.

We correct it and record the correction, with the date, on the corrections log; pages in the research library also carry their own change history. The editorial policy says how the library is written and reviewed.

The research library: a reference entry for every compound with its calculated properties and expected ions, a methods series on how peptides are made and tested, the myths series on how certificates are misread, a glossary, and the enforcement tracker that reads every FDA warning letter to a seller of research-labeled peptides.