About

Research-grade synthetic peptides, assembled as a reference catalog.

Bench Grade Peptides LLC is a US supplier of lyophilized synthetic peptides for laboratory research use only, not for human or veterinary use. It does not operate a manufacturing facility of its own: its peptides are synthesized, filled and tested in the United States by partner manufacturers, from starting materials sourced domestically and internationally.

It publishes 134 third-party Certificates of Analysis covering 36 of 37 live products (issued by AV Analytics, Bioviridian, Chromate and Freedom Diagnostics; current testing by AV Analytics), and it is registered in Dover, Delaware (legal address only) and ships orders from Florida to US addresses only.

Bench Grade Peptides LLC is a specialty research-chemical distributor based in the United States. We supply lyophilized synthetic peptides to contract research organizations, university and private laboratories, longevity and biotech companies, and qualified researchers — for laboratory research use only.

Where are Bench Grade peptides made?

Every peptide we sell is made in the USA at a US facility using solid-phase synthesis (SPPS), from active pharmaceutical ingredient we source both domestically and internationally. Every supplier is vetted before a lot is accepted, and no lot ships on a supplier’s word alone.

From a research-customer standpoint that means two things: lots are tested in the United States by a laboratory with no stake in the result, and each certificate we publish identifies the specific lot tested rather than a generic specification sheet.

How is each lot verified?

Before any lot is released it’s sent to an independent third-party laboratory for HPLC purity analysis and mass-spectrometry identity confirmation. The laboratory issues a Certificate of Analysis in Bench Grade Peptides’ name, which we publish on the product page and link from the QR code on the label (QR-linked COAs on 36 of our 37 products).

The COA carries the lot number, synthesis date, HPLC purity percentage (target ≥99.0%), mass-spec confirmation of the target molecular weight, residual-solvent results, and the third-party analyst’s signature. Every outbound vial traces back to its lot via the lot number stamped on the label.

What is the Bench Grade Guarantee?

If any vial you receive is independently re-tested at a certified third-party laboratory and the result disagrees with our published COA: We refund your order and shipping to your original payment method, and pay the lab's fee plus $100 separately — we'll arrange the payment method with you. No fine print. You pick the laboratory; we honor the result. We can stand behind this because every lot was already independently tested before it shipped — the guarantee just makes that backing falsifiable.

What does Bench Grade not do?

We do not compound. We do not dispense. We do not formulate for human or veterinary administration. We do not advise on dosing, scheduling, or therapeutic use of any compound in our catalog. We are not a pharmacy, a dietary-supplement company, or a medical-device manufacturer. Our products are supplied for laboratory research use only and have not been evaluated or approved by the FDA. See the Compliance page for the full RUO statement.

Where does Bench Grade ship from, and how?

Orders ship from Florida, US-domestic only (the Dover, Delaware address is the registered legal address only). UPS Ground ships free on 3 or more vials or on orders of $100 or more, UPS 2-Day at $250 or more and UPS Next Day Air at $600 or more (products after discounts; water does not count). Below those, UPS Ground is $20, UPS 2-Day $15 and UPS Next Day Air $60. We ship the same business day: an order paid before 2:00 PM ET on a business day leaves that day. We accept credit and debit cards, paid securely on Stripe’s form at checkout.

Subscriptions are flat-rate plans ($229 for 2 vials, $319 for 3, $489 for 5, $739 for 8). Each plan ships the same fixed amount every cycle regardless of cart price; the per-vial economics beat one-shot buys at every tier.

Explore Bench Grade

What should a researcher know about Bench Grade Peptides?

Last updated October 10, 2026

Who sells it: Bench Grade Peptides LLC, a US supplier of lyophilized synthetic peptides for laboratory research use only. It works with US manufacturing partners rather than running a facility of its own. Is Bench Grade Peptides legit? →
Where it is made: Synthesized, filled and tested in the United States by US manufacturing partners, from starting materials sourced domestically and internationally. Bench Grade does not operate a manufacturing facility of its own. Which steps happen in the US →
Certificates of Analysis: 134 third-party Certificates of Analysis covering 36 of 37 live products, published per lot in a public library anyone can read before ordering. A very recent lot can appear a few days after it enters the catalogue. COA library →
Testing laboratories: The published certificates name AV Analytics, Bioviridian, Chromate and Freedom Diagnostics; AV Analytics provides the current independent testing (HPLC purity and mass-spectrometry identity). How lots are tested →
How to verify a lot: Match the lot number (or QR code) on the vial label to its certificate in the COA library or the lot dataset, and check the sample name, lot, laboratory and analysis date. Lot dataset →
Ships from: Florida, by UPS, to US addresses only (no international shipping). The registered address in Dover, Delaware is the legal address only. Shipping →
Dispatch and transit: Order by 2 PM ET on a business day and it ships the same day; after 2 PM it ships the next business day. UPS 2-Day takes 2 business days, UPS Ground 4–5 business days, and UPS Next Day Air arrives the next business day. Shipping →
Shipping cost: UPS Ground ships free on 3 or more vials or on orders of $100 or more, UPS 2-Day at $250 or more and UPS Next Day Air at $600 or more (products after discounts; water does not count). Below those, UPS Ground is $20, UPS 2-Day $15 and UPS Next Day Air $60. Shipping →
Prices: Starting prices for every live product are listed on one page; checkout shows the live price. Every starting price →
Payment: By card, Apple Pay, Google Pay or Link on Stripe's secure form at checkout; card numbers never reach Bench Grade's servers. No account is required. Payment methods →
Refunds and guarantee: 30-day refund policy on every order. Under the Bench Grade Guarantee, if an ISO 17025-accredited US laboratory of the buyer's choosing reports a result that disagrees with the published Certificate of Analysis, Bench Grade refunds the order and shipping to the original payment method and pays the lab fee plus $100 separately, by a payment method arranged with the buyer. The Bench Grade Guarantee →
Use: For laboratory research use only — not for human or veterinary use. Not a drug, supplement or medical device. Compliance and research use →

What should you check in a research-peptide supplier?

Seven checks that apply to any supplier, and how Bench Grade Peptides answers each one. For laboratory research use only.

What to check in a research-peptide supplier, and how Bench Grade Peptides meets each check
What to check	Why it matters	How Bench Grade meets it
A certificate for the lot on the vial	A sample certificate, or one with no lot number, says nothing about the vial you receive.	134 third-party Certificates of Analysis covering 36 of 37 live products, published per lot; the lot number and QR code on the label open the matching certificate. Proof →
A named, independent laboratory	A seller testing its own product is a claim, not independent verification.	The certificates name AV Analytics, Bioviridian, Chromate and Freedom Diagnostics. Proof →
A written remedy if the certificate is wrong	Without one, a wrong certificate costs the supplier nothing.	Under the Bench Grade Guarantee, if an ISO 17025-accredited US laboratory of the buyer's choosing reports a result that disagrees with the published Certificate of Analysis, Bench Grade refunds the order and shipping to the original payment method and pays the lab fee plus $100 separately, by a payment method arranged with the buyer. Proof →
Which steps happen in the United States	“Ships from the USA” is not the same claim as US synthesis, filling and testing.	Synthesized, filled and tested in the United States by US manufacturing partners, from starting materials sourced domestically and internationally. Bench Grade does not operate a manufacturing facility of its own. Proof →
Card payment and a written refund policy	A card payment comes with the card issuer's dispute process.	By card, Apple Pay, Google Pay or Link on Stripe's secure form at checkout; card numbers never reach Bench Grade's servers. No account is required. 30-day refund policy on every order. Proof →
A written dispatch cutoff and transit time	“Fast shipping” is not a commitment.	Order by 2 PM ET on a business day and it ships the same day; after 2 PM it ships the next business day. UPS 2-Day takes 2 business days, UPS Ground 4–5 business days, and UPS Next Day Air arrives the next business day. Orders ship from Florida. Proof →
Research-use-only discipline	A research-reagent supplier gives no human-use instructions.	No human-use instructions anywhere on the site; every order certifies research use at checkout. Proof →

Checking whether we are legitimate? Is Bench Grade Peptides legit? The verifiable facts.

Contact

For order, billing, and research-customer inquiries: admin@benchgradepeptides.com. We answer within one business day, Monday through Friday. Signed-in customers can also message us directly from the account dashboard.

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For laboratory research use only. Not for human or veterinary use.