Research Peptides USA, Third-Party Tested • RTT Peptides
Free discreet shipping on every order · prices in USD HPLC and LC-MS tested, certificate on every lot
4.66,084+ verified researchers
Research-grade · Assayed in the US

Precision peptides, verified to the vial

Every lot is HPLC and mass-spec tested, and the certificate of analysis is matched to the batch number on your vial. Discreet, tracked shipping nationwide.

Subscribe & Save 30%on every vial · from $68.59 · skip or cancel anytime

HPLC + LC-MS tested · Free discreet shipping · Reship or refund guarantee

23Compounds
≥99%HPLC purity
LC-MS+ HPLC assay
COAEvery lot

Research peptides, in stock

View all 23, search & filters →

A selection of our most-requested compounds. Every vial ships with the HPLC and LC-MS certificate of analysis for its exact lot, verifiable by batch number.

MetabolicRetatrutide 10mg vial

Retatrutide 10-60mg

C221H342N46O68 · 4731.33 g/mol · CAS 2381089-83-2

≥99% (HPLC) · Lyophilized powder
Free 2-day shipping
From$139.99 $199.98Subscribe & Save 30%
RecoveryBPC-157 10mg vial

BPC-157 5-20mg

C62H98N16O22 · 1419.56 g/mol · CAS 137525-51-0

≥99% (HPLC) · Lyophilized powder
Free 2-day shipping
From$68.59 $97.99Subscribe & Save 30%
CosmeticGHK-Cu (Copper Peptide) 50mg vial

GHK-Cu (Copper Peptide) 50mg

C14H22CuN6O4 · 401.91 g/mol · CAS 89030-95-5

≥99% (HPLC) · Lyophilized powder
Free 2-day shipping
$98.00 $140.00Subscribe & Save 30%
Save 15%RecoveryTB-500 5mg vial

TB-500 5mg

C212H350N56O78S · 4963.44 g/mol · CAS 77591-33-4

≥99% (HPLC) · Lyophilized powder
Free 2-day shipping
$104.93 $149.90Subscribe & Save 30%
MetabolicSemaglutide 5mg vial

Semaglutide 5mg

C187H291N45O59 · 4113.58 g/mol · CAS 910463-68-2

≥99% (HPLC) · Lyophilized powder
Free 2-day shipping
$123.20 $176.00Subscribe & Save 30%
LongevityNAD+ 100mg vial

NAD+ 100mg

C21H27N7O14P2 · 663.43 g/mol · CAS 53-84-9

≥99% (HPLC) · Lyophilized powder
Free 2-day shipping
$111.93 $159.90Subscribe & Save 30%
SuppliesBacteriostatic Water 3mL vial

Bacteriostatic Water 3mL

Sterile reconstitution solvent

Sterile, pyrogen-free
Free 2-day shipping
$18.20 $26.00Subscribe & Save 30%
Independently verifiable

Every batch is HPLC and mass-spec tested, with independent third-party verification available on request.

Discreet shipping

Plain, unmarked packaging shipped fast across the US.

Secure checkout

Visa, Mastercard and Amex, processed by Stripe.

Delivery guarantee

Lost, held or seized? We reship or refund, no dispute needed.

Frequently ordered together

Popular research pairings

The compound pairs researchers order together most, each with the bacteriostatic water to reconstitute them. Add the whole set in one tap, or open any compound for its certificate.

The process

How it works

From order to verified certificate in four steps.

01
Place your order

Pick your compounds and check out securely by card, processed by Stripe.

02
Lab-tested batch

Your vials are pulled from a batch assayed by HPLC and mass spectrometry, with the COA on file and independently verifiable on request.

03
Discreet tracked shipping

Plain, unmarked packaging with tracking, dispatched the next business day anywhere in the US.

04
Verify your COA

Match the batch number printed on your vial to its certificate of analysis online, any time.

Every batch, independently verifiable

We do not ask you to take purity on faith. Every lot is assayed by HPLC and mass spectrometry and released with a certificate of analysis matched to the batch number printed on your vial. Independent third-party verification of any lot is available on request.

  • RP-HPLC-UV purity plus LC-MS identity on every lot
  • Certificate matched to the batch number on your vial
  • Independent re-test guarantee, backed by refund
Browse certificates
Certificate of analysisBPC-157 10mg · Lot B4348
Released
Purity by RP-HPLC-UV99.87% main peak
PurityRP-HPLC-UV99.87%
IdentityLC-MS (ESI+)Confirmed
AppearanceVisualConforms
View this certificate →
Verified reviews

What researchers say

Real feedback on the things we control: purity documentation, packaging, delivery and support.

4.6
6,084 verified ratings

COA matched the batch number on my vial exactly, and our in-house HPLC run lined up with the certificate. Documentation is as rigorous as suppliers three times the price.

JM
J. M.Austin, TX
Verified buyer

Ordered Tuesday afternoon, plain unmarked box at the lab Thursday morning. Tracked the whole way, nothing on the package but the shipping label.

SR
S. R.Denver, CO
Verified buyer

Emailed about an older batch certificate and support sent the full PDF within the hour, then followed up after delivery. Fast, human service.

AT
A. T.Portland, OR
Verified buyer

Every vial arrived perfectly packed, caps intact, batch numbers printed cleanly and matching the paperwork. The best packaging quality we have seen from a US supplier.

DK
D. K.Phoenix, AZ
Verified buyer

Third-party test results are posted before you order, not after you ask. That level of transparency is why our lab keeps reordering.

MP
M. P.Columbus, OH
Verified buyer

Card payment cleared within minutes and the order went out the same day. Two orders in, both flawless, both with certificates on file.

LG
L. G.Raleigh, NC
Verified buyer

Reviews are moderated and may only describe product quality, documentation, shipping and service. All products are for in-vitro research use only.

Our standards

What we guarantee

Five commitments on every order, no exceptions.

Independent-test guarantee

Send any vial for third-party HPLC testing. If it does not match its certificate, we refund the test and your order.

Refund backed
Discreet packaging

Plain outer box, no brand marks and no product names anywhere on the outside.

Unmarked, always
Nationwide shipping

Tracked, next business day dispatch to all 50 states from a US facility.

Tracked door to door
Delivery guarantee

If your order is lost, held, damaged, or arrives wrong, we reship it or refund you. No dispute needed.

Reship or refund
Secure checkout

Card payments are processed by Stripe over an encrypted connection. We never see or store your card number.

Visa, Mastercard, Amex

Frequently asked

Straight answers on testing, shipping, and payment. Anything else, email support@rttpeptides.com.

Do you ship nationwide across the United States?

Yes. Orders ship the next business day from within the United States by tracked courier and arrive in 2 business days, with a cold pack for temperature-sensitive compounds.

Is testing and a COA provided?

Every lot is assayed in-house by HPLC and mass spectrometry and ships with its certificate of analysis. Independent third-party verification of any lot is available on request. You can look up any lot by its batch number.

How discreet is your packaging?

Plain, unbranded, sealed packaging with nothing on the outside that names or hints at the contents.

What is the intended use of these products?

Every compound is supplied strictly as a reagent for in-vitro laboratory research. It is not for human or veterinary use.

Do these come ready to use, or do I need to reconstitute them?

The peptides are supplied lyophilized (freeze-dried) for stability, so they are reconstituted with bacteriostatic water in a laboratory setting for in-vitro research. Our free reconstitution calculator works out the concentration and syringe draw for any vial size, and bacteriostatic water is stocked in our reconstitution supplies.

How should I store my compounds once they arrive?

They ship lyophilized (freeze-dried), which is stable in transit and tolerates brief time at room temperature. Keep the sealed vial refrigerated for short-term storage or frozen near minus 20 C for longer, and once reconstituted keep the vial refrigerated and use it within its stability window. Our storage guide covers shelf life before and after reconstitution in detail.

How do I know I will receive my order after paying by card?

Every order is covered by our delivery guarantee: if it is lost, held, damaged, or arrives wrong, we reship it or refund you, no dispute needed. You get a tracking number by email at dispatch, and support replies within one business day.

What happens if my package is held or seized?

Because we ship domestically, packages do not clear customs. If a package is held or seized, it is covered by the delivery guarantee and we reship or refund. We ship in plain, unmarked packaging from within the US.

What shows on my bank statement?

Nothing that names a product. Card payments are processed by Stripe and appear under a neutral trading name.

Do you provide third-party testing?

Every batch is HPLC and mass-spec tested and ships with its certificate of analysis. Independent third-party HPLC/MS verification of any lot is available on request, and our independent-test guarantee refunds your order if a vial does not match its certificate.

Can I verify a specific batch before I buy?

Yes. Each product page shows the lot currently shipping with a link to its certificate, and you can look up any batch number on the Verify COA page.

Restocks, new compounds, and COA drops

Join the list for new batch releases and their certificates. No spam, and you can unsubscribe anytime.