Research peptides for sale, tested by independent labs.
Small-batch research peptides with a third-party certificate of analysis you can read before you buy — purity, endotoxin and sterility, published for every batch. US stock, ships within 24 hours.
- 20,000+orders shipped
- 57compounds with a certificate
- Free standard shippingon orders $250+, anywhere in the US
- Within 24 hoursdispatch on business days
Free shipping on orders $250+·Free shipping on orders $250+·Free shipping on orders $250+·Free shipping on orders $250+·Free shipping on orders $250+·Free shipping on orders $250+·
Verifiable quality
Every batch, checked by an outside lab.
Five things we test for, and what each one proves. Pick any of them to see what it covers — then look up the certificate for the compound you are actually buying.
- Third-party tested
- Freedom Diagnostics & Kovera
- Finished in the USA
- Ships within 24 hrs
- Search a lot number
Identity and amount
Confirms the material matches the peptide named on the label, and verifies the measured vial content against its stated specification.
LC-MS identity · conformity and net-content testing
Build a pack
Order more than one, pay less for each.
Mix any vials, any doses. Pack pricing applies automatically at checkout — and your first-order code stacks on top of it.
5vials5% off
10vials10% off
20vials20% off
A 20-vial pack
Saves $600.00
20 vials, bought separately20 × Bromantane$3000.00
The same 20 as a pack$2400.00
New customer, 40% code appliedEmailed on signup — entered at checkout, never automatic$1440.00
01 · Research areas
Start with the pathway.
If something goes wrong
If it goes wrong, we sort it.
Damaged or lost, replaced
Broken seal, missing vial, package that never shows up — tell us and we send a replacement. Claims get looked at within one business day, by a person.
Every batch documented
The lab report for your exact batch is emailed on dispatch and kept in your account — including for compounds that have since sold out.
Real people, same day
You email us, someone in Florida emails back. No ticket queue, no script, no three-day wait for a reply that doesn't answer the question.
02 · Catalog
Most requested
Laboratory reports
117 certificates across 57 compounds
Freedom Diagnostics and Kovera · never our own lab
HPLC trace · UV 214 nm detection
The tall peak is the compound itself. The small rises are everything else in the vial — that difference is what purity measures.
Why trust us
Science they can't silence.
The thing most suppliers keep quiet is the data. Anyone can print "99% pure" on a label. We send every batch to an independent laboratory and publish the actual results — the exact purity figure, which lab ran it, and the date.
And if a number ever comes back lower than we'd like, you'll still see it. That's the whole point. A number you can't check isn't a number — it's a marketing claim.
Search any compound by name — results appear as you type.
Verified buyers
4.8 out of 5, from 1,240+ orders
The COA was on the product page before I ordered, and the batch report showed up in my inbox the same day it shipped. First supplier I have used that does both.
Ordered Friday afternoon, tracking Saturday morning, delivered Monday. Purity matched what was published to the decimal.
I asked support a handling question and got a real answer from a real person the same day, not a canned reply.
Common questions
Before you order
Pack pricing comes first — 5% off at 5 items, 10% at 10, 20% at 20 or more, applied automatically. Your 40% first-order code applies on top of that at checkout. Paying with Bank Pay then takes a further 10% off. During an automatic sale such as the BOGO, checkout applies whichever offer saves you more.
Enter your email anywhere on the site and we send the code straight away, along with the Peptide 101 Playbook. Apply it at checkout on your first order — a vial of bacteriostatic water is added free at the same time.
Yes. Peptides ship as a freeze-dried powder and require bacteriostatic water to reconstitute. A 10ml vial covers several compounds and is free with your first order. If your cart doesn't have one, we flag it at checkout.
Within 24 hours, from our own inventory in Florida and California. Standard delivery is 2–4 business days and free over $150. We hold physical stock rather than drop-shipping.
File a claim from your account and we review it within one business day. Broken seals, missing vials and packages that never arrive are replaced.
Here. Every compound Real Peptides sells is tested by an independent laboratory — Freedom Diagnostics or Kovera — and the certificate of analysis for the batch is published on the product page and at /coas before you order. Stock is held in Florida and California and ships within 24 hours. Everything is sold for laboratory research use only.
The peptides on this site are supplied to researchers and laboratories as reference materials. They are not drugs, dietary supplements or cosmetics, are not intended for human or animal use, and nothing on the site is medical or dosing advice. Buyers confirm they are 21 or older and are purchasing for research.
Each production batch is sent to a third-party laboratory for HPLC purity and, where applicable, endotoxin and sterility testing. The report carries the batch's lot number, the lab that ran it and the test date, and it stays on file even after that batch sells out — search any lot number at /coas.