Research grade peptides.

209PEPS supplies high-purity lyophilized peptides for laboratory research. Browse the catalog, drop a phone number at checkout, and we'll reach out to confirm and arrange your order.

5.0 · 4 reviews· Read reviews
New here?Use code PEPS10 for 10% off your order.
209 0000 1957 · CENTRAL VALLEY · CA

From the bench

What researchers say

Read all reviews
I love peps. Best in i’ve had
Vaughn Anderson
Best prices and fastest meetups in the 209-510
Jack dellis
209peps has the best research peps in the 209. I would definitely recommend if you do research.
Omar Jimenez
Section 01

The Catalog

14 compounds in stock · prices in USD · qty per vial as labeled

View full catalog

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Featured lots

Section 02

Every lot verified.

Released by the lot, never the batch average. A batch average hides the outliers — we publish the number for the lot you actually receive, matched to the code printed on your vial.

12lots published
HPLCPurity method
MSIdentity

Testing lab · Janoshik Analytical

Look up your lot

Match the lot number on your vial to its record, then open the report and read it yourself.

View certificates of analysis
Certificate of analysis on the bench beside a research vial

Risk reversal

COA-match guarantee

Doesn’t match its COA?

If a lot doesn’t match the certificate published for it, we replace it. Send us the lot number on your vial.

Arrived damaged?

Broken or compromised vials are replaced. Photograph the parcel as it arrived and file a claim from your account.

Lost in transit?

Tracked shipping on every order. If a parcel is lost or marked delivered but never arrived, file a delivery claim and we’ll make it right.

Returns & refundsFile a claim
Section 03

Shipping

209PEPS shipping box with orange tape, cold pack, and research vials
  • Ships in 1–2 business days. Cold-packed and dispatched from the Central Valley once payment clears.
  • $15 flat · free at $199+. Free shipping keys off your pre-discount subtotal, so using a code never costs you the free ride.
  • Lost or damaged? Covered. File a delivery claim from your account and we’ll make it right with a replacement or refund.
Full shipping policy

Build & save

Pick any 3, save 5%

Mix and match three different compounds and the extra 5% comes off automatically at checkout. Free shipping still kicks in at $199.

Stay in the loop

New-lot & restock alerts

Get notified when lots are retested or a compound is back in stock — plus PEPS10 for 10% off your order.

Restock and new-lot notices only. Unsubscribe any time.

Store Reviews

5.0 · 4 reviews
  • Vaughn AndersonJul 10, 3:59 AM

    I love peps. Best in i’ve had

  • Jack dellisJun 30, 8:43 PM

    Best prices and fastest meetups in the 209-510

  • Omar JimenezJun 30, 6:54 PM

    209peps has the best research peps in the 209. I would definitely recommend if you do research.

  • Xavier DiepJun 30, 6:53 PM

    Best peps in the 209!

Leave a review

Reviews are public and reflect customer opinions, not medical or research claims. For laboratory research use only.

Section 04

How ordering works

01

Build your order

Add compounds to your cart. Create an account to save your details for next time, or check out as a guest.

02

Check out & pay

Check out and pay securely online by card, PayPal, or Venmo.

03

We get it to you

Your order hits our dashboard. We confirm it, then ship it out.

Every order

  • Lot-verified — a batch COA backs every vial.
  • Lab-grade — high-purity, lyophilized for laboratory research.
  • Discreet shipping — tracked to your door, shipped nationwide.

Questions

What exactly am I buying?

Lyophilized reference materials supplied strictly for in-vitro and laboratory research. They are not drugs, supplements, or medical products, and nothing on this site describes human or veterinary use.

Is the material third-party tested?

Yes. Batches are analysed by an independent laboratory. The lot number printed on your vial matches a certificate of analysis published on our COA index, so you can verify the exact material you received.

How should vials be stored and reconstituted?

Store lyophilized vials at −20 °C, protected from light. For research reconstitution, bacteriostatic water is the standard diluent; keep the reconstituted solution refrigerated at 2–8 °C.

How fast does it ship, and how is it packaged?

Orders placed before the daily cutoff ship same or next business day, cold-packed and discreetly packaged from the Central Valley. Tracking is emailed on dispatch.

What does “research use only” mean here?

It means these compounds are sold for laboratory and analytical work only. They are not for human or animal consumption, diagnosis, or treatment, and you must be 21 or older and a qualified researcher to order.

What if something is wrong with my order?

If a lot doesn’t match its certificate, or a parcel arrives damaged, is lost, or is marked delivered but never arrives, file a delivery claim from your account and we’ll replace or refund it.