- 30% off your first order
- Earn 2.5 points per $1 spent
- Free shipping $150+ · free 2-day $250+
🎁30% Offon your first purchase|Applied with account creation✓
★★★★★ Trusted by 1,200+ Researchers
Research Peptides.
Verified Purity.
Verified research compounds, third-party tested, and same-day shipped.
HPLC Verified≥ 99% purity
Third-Party COAScannable per batch
Same-Day DispatchOrder before 6pm ET, Mon–Sat
Best Sellers
Top Picks
Our most popular research peptides.
Bestseller
Research Peptide
GLP-3 (RT)
Metabolic Research · 10MG
Triple GIP / GLP-1 / glucagon receptor agonist studied in metabolic research.
✓ Fentanyl Tested✓ Endotoxins Tested✓ HPLC Tested
Batch 2026060208 · tested Aug 17
99%+
Purity
199
Reward Pts
$79.99
Research Peptide
BPC-157
Recovery Research · 10MG
Synthetic pentadecapeptide referenced in tissue-repair and cytoprotection research.
✓ Fentanyl Tested✓ Endotoxins Tested✓ HPLC Tested
Batch 2026050910 · tested Aug 29
99%+
Purity
112
Reward Pts
$44.99
Research Stack
Wolverine
Recovery Blend · 20MG
BPC-157 + TB-500 blend used in combined tissue-repair and recovery models.
✓ Fentanyl Tested✓ Endotoxins Tested✓ HPLC Tested
Batch 2026050910 · tested Aug 17
99%+
Purity
224
Reward Pts
$89.99
Research Peptide
GHK-Cu
Cosmetic Research · 50MG
Copper-binding tripeptide referenced in skin-remodeling and tissue-repair research.
✓ Fentanyl Tested✓ Endotoxins Tested✓ HPLC Tested
Batch 2026060208 · tested Aug 17
99%+
Purity
87
Reward Pts
$34.99
Popular
Research Stack
GLOW
Skin & Recovery Blend · 70MG
GHK-Cu, BPC-157 and TB-500 blend studied across skin and recovery models.
✓ Fentanyl Tested✓ Endotoxins Tested✓ HPLC Tested
Batch 2026060208 · tested Aug 18
99%+
Purity
274
Reward Pts
$109.99
Trending
Research Peptide
NAD+
Longevity Research · 1000MG
Redox coenzyme central to cellular energy, mitochondrial and longevity research.
✓ Fentanyl Tested✓ Endotoxins Tested✓ HPLC Tested
Batch 2026060208 · tested Aug 17
99%+
Purity
274
Reward Pts
$109.99
How It Works
From Lab to You.
A transparent process. Verified at every step.
01
Third-Party Testing
Every batch is tested by independent, ISO-accredited labs to verify purity, identity, and potency.
ISO 17025 Accredited
Purity Verified
COA Published
02
Secure Packaging
Verified products are carefully packaged in sterile, tamper-evident materials to ensure maximum protection.
Tamper Evident
Sterile Environment
Quality Assured
03
Fast & Discreet Shipping
Orders are shipped quickly and discreetly with trusted carriers to ensure safe delivery to your door.
Fast Dispatch
Discreet Packaging
Global Delivery
04
Track Your Order
Track your package in real time from our facility to your door with full visibility every step of the way.
Real-Time Updates
Full Journey Visibility
Delivered Safely
Test Results
LIVE
Purity (HPLC)LIVE
99.86%
Spec: ≥ 95.0%HPLC area norm.
Sterility (PCR)LIVE
NO GROWTH
PCR assay
Spec: No GrowthPCR method
Fentanyl (LC-MS/MS)LIVE
NOT DETECTED
Immunoassay screen
Cutoff: 50 ng/mLEvery Batch
50,000+
Vials Tested
Across All Batches
2,143
Current Lots
Under Quality Control
18,927
COAs Issued
This Month
24 hr
Turnaround
Average Dispatch
The Codex Standard
Every compound is rigorously tested to ensure the highest standards of purity, identity, and stability.
Research-Grade Purity
Every batch is independently lab-verified at ≥99% purity before it ships.
Purity is only the first checkpoint. Before any batch ships, it also clears endotoxin, HPLC, and fentanyl screening — three separate checks designed to catch what a single purity number alone can’t.
HPLC Identity TestingCLEAR
Confirms the compound’s identity using high-performance liquid chromatography, the same method used to catch synthesis byproducts.
Endotoxin ScreeningCLEAR
Checks for bacterial residue left over from production — invisible and odorless, but a standard safeguard for research use.
Fentanyl ScreeningCLEAR
Screens for cross-contamination from unrelated compounds, an increasingly important standard across the research chemical supply chain.
Sample COA layout — batch-specific certificates are linked via the QR code above.Same-Day Dispatch
Order before 6pm ET, Mon–Sat, ships the same day, fully tracked.
Every order placed before 6pm ET, Monday through Saturday, leaves our facility that same day. Here’s what happens between checkout and your door.
Order Placed
Confirmed and queued for packing right away.
Packed & Verified
Each vial is checked against your order before it’s sealed.
Dispatched Same-Day
Leaves our facility before the 6pm ET cutoff, Mon–Sat.
Tracking Sent
You get a tracking number the moment it ships.
Every package ships discreet and secure — plain outer packaging with no indication of contents, fully tracked from our facility to your door.
Free shipping unlocks automaticallyOn all orders $150 and up — free 2-day from $250
Third-Party Tested
Every batch independently verified with full HPLC, endotoxin, and fentanyl testing.
Third-party testing means an independent lab — one with no financial stake in whether your batch passes — verifies what’s actually in the vial. That removes the conflict of interest that comes with a company grading its own work.
HPLC
Endotoxin
Fentanyl
HPLC Identity Testing — Confirms the compound’s identity and concentration using high-performance liquid chromatography.
Endotoxin Screening — Checks for bacterial residue left over from production, invisible and odorless without lab equipment.
Fentanyl Screening — Screens for cross-contamination from unrelated compounds before a batch is ever approved to ship.
52%
of unverified compounds bought online actually contained what the label claimed, per a peer-reviewed JAMA analysis
Van Wagoner et al., JAMA, 2017 — chemical analysis of 44 unregulated products sold online (PMID 29183075)
Scannable COAs
QR code on every vial links directly to the COA page.
Every product we sell carries a QR code on its packaging. Scan it with any phone camera and it opens the COA page on our site — no account, no request form, no waiting on an email reply.
scans to
COA Page
Does the QR code lead to a page just for my vial?
It leads to the COA page on our site, where published lab results are posted — it isn’t a separate, one-off page generated per vial.
Why bother scanning it instead of just trusting the label?
Because the results come from an independent lab, not from us — you’re checking their work, not taking our word for it.
Do I need an account to view it?
No. The COA page is open to anyone, whether you’ve ordered yet or not.
100%
of products sold on codexresearch.shop carry a QR code linking to our COA page.
Codex Research packaging standard, applied storewide.
CX
Point your camera at the QR codeThe report will open instantly
Our Process
Verified From Order to Shipment.
A transparent fulfillment process built around documentation, quality control, and reliable delivery.
SECURE CHECKOUT
01
Order Received
Order
Your order is securely received and confirmed.
Secure Checkout256-bit SSL encryptedYour data is protected
Instant ConfirmationEmail sent immediatelyNo waiting. Get started fast
Order Placed256-bit SSL encrypted checkout
Payment SecuredYour information stays private
Confirmation SentEmail sent immediately
Encrypted Transaction256-bit SSL protected checkout.
Protected DataYour information stays private.
Order ConfirmedConfirmation sent instantly.
LIVE STATUSAll systems operationalLAB VERIFIED
02
Lab Verified
Lab Verification
Batch documentation is reviewed and verified by our lab.
HPLC VerifiedPurity confirmedwith advanced chromatography
COA AvailableFor every batchtransparency you can trust
Independent TestingThird-party verified for accuracy
Chain of CustodyTracked from source to shipment
DocumentedCOA published for every batch
Independent Lab TestingThird-party verified for accuracy.
Full Chain of CustodyTracked securely from source to shipment.
Transparent DocumentationCOAs available for every batch.
QUALITY ASSURED
03
Quality Checked
Quality Check
Every product is inspected, sealed, and labeled with precision.
99%+ PurityGuaranteedVerified on every certificate
Identity VerifiedEvery batchConfirmed by HPLC-RTM
Manual InspectionEvery batch checked by hand
Sealed PackagingTamper-proof on every order
Batch TrackedVerified at every step
Manual InspectionEvery batch checked by hand.
Sealed PackagingTamper-proof on every order.
Batch TrackedVerified at every step.
ON TIME, EVERY TIME
04
Fast Shipping
Packed and Shipped
Packed securely and dispatched with tracking provided.
Same-Day DispatchOrders before 6PM ET, Mon–Satship the same day
Fully TrackableReal-time updatesfrom our lab to your door
Secure DeliveryDiscreet, safe,and reliable every time
Discreet PackagingPlain, unbranded packaging.
Real-Time TrackingLive updates to your door.
Delivery ConfirmedConfirmed on arrival.
Built on trust. Backed by science.
TransparentFull documentation for every batch.
VerifiedThird-party tested and validated.
ReliableConsistent quality you can count on.
Global DeliverySecure shipping worldwide.
Melanotan II
10 MG
TESAMORELIN
5 MG
THE CODEX GUARANTEE
We only ship what we would test in our own lab.
✓
Third-Party Tested
Every batch independently verified with full HPLC analysis.
✓
Scannable COAs
QR code on every vial links directly to lab results.
✓
Same-Day Dispatch
Order before 6pm ET, Mon–Sat, ships the same day, fully tracked.
✓
Research-Grade Purity
Guaranteed ≥99% purity, batch after batch.
Shop Verified Peptides →
Membership
RESEARCH ACCESS, ON YOUR TERMS
Four tiers built around how much you order. Start free, upgrade when the volume makes sense, cancel any time.
- Free standard shipping on every order
- Earn 3 points per $1 spent
- Everything in Research Access
- Free 2-day shipping on every order
- Earn 5 points per $1 spent
- 5% off every order on the yearly plan
- 10% off every order, monthly or yearly
- Earn 7.5 points per $1, 3x the free rate
- $37.50 back in credit on a $500 order
Every order earns reward points. 100 points = $1 credit, redeemable from the Rewards tab in your account.
Cancel any time. See the full tier comparison →
FREQUENTLY ASKED QUESTIONS
What purity level are your peptides?
All Codex Research compounds are independently HPLC-tested and guaranteed to meet or exceed 99% identity purity.
What is a COA and how do I read it?
A Certificate of Analysis is a lab report confirming the identity and purity of a specific batch. Scan the QR code on your vial to view it instantly.
How fast do you ship?
Orders placed before 6pm ET, Monday through Saturday, ship the same day from our U.S. facility, with full tracking provided.
What payment methods do you accept?
We currently accept select digital payment methods at checkout. Details are provided during the checkout process.
What is your refund policy?
If a batch does not match its published COA, contact support for a replacement or refund.
What is your return policy?
All sales are final. Because these are temperature-sensitive research materials, we can't accept returns of opened or shipped product. See our Refund Policy for full details.
What if my item is damaged or incorrect?
If you receive a damaged, defective, or incorrect item, or your order doesn't arrive, contact us as soon as possible with your order number and photos, and we'll make it right with a replacement or refund.
How long does a refund take?
Approved refunds are issued within 5 to 7 business days. Depending on your payment method, it may take a few additional days to appear on your end.
Can I change or cancel my order?
We process orders quickly, so the window to change one is short. Contact us as soon as possible after ordering and we'll do our best to help. Once an order has shipped, it can't be modified.
Do you offer bulk or wholesale pricing?
For bulk or wholesale inquiries, reach out through our contact form or email us directly and we'll get you taken care of.
Is my information secure?
Yes. All checkout and account data is encrypted in transit, and we never store your full payment details on our servers.
