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🔥 END OF SUMMER SALE — 25% OFF ALL RESEARCH PENS · Ends in --:--:--
🔬Third-party independent lab tested
ISO/IEC 17025 accredited
📊99.68% HPLC purity
🚚Free 24h UK cold-chain dispatch
🇬🇧  Ships from UK · 24hRT40 research pen🔬 3rd-party lab tested
Triple-target research reference pen

RT40 Pen

RT4040 mgRTPEN40

A pre-filled 40 mg research pen containing RT40 — a triple-target research reference compound supplied strictly for in-vitro laboratory research. No application, dosing or administration guidance is provided.

✓  Handling accessories included · 99.68% HPLC purity · strictly research use
🔥 End of Summer Sale · 25% OFF · ends in --:--:--
-25%
1–4 pens
£172
£129/pen
Standard
BEST OFFER-31%
5–9 pens
£172
£119/pen
Save more
-42%
10+ pens
£172
£99/pen
Lowest price
1
Total
£129 £129/pen
Request research quote — £129
Free 24h UK dispatch · cold-chain packed · third-party lab tested · research use only
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SM40 Pen
Single-target reference

SM40 Pen

SM40 · single-target research compound
£129£172
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What’s in the box

Reference-grade compound, packed for the lab.

What is inside the pen box
  • RT40 Pen pre-filled research pen (40 mg)
  • Handling accessories (needles & alcohol swabs)
  • Storage & laboratory handling insert
  • Batch-matched Certificate of Analysis
  • Free 24h UK cold-chain dispatch, validated 96 hours
  • Strictly for in-vitro laboratory research — not for human or veterinary use
Research applications

Reported areas of investigation.

These reference-grade compounds are supplied strictly for in-vitro laboratory research. Reported research areas include biochemical assays, cell-line studies and analytical reference work.

CategoryReported use in literature
Biochemical assaysIn-vitro binding studies on cultured cell lines
Cell-line studiesComparative in-vitro biochemical characterisation
Analytical referenceChromatographic and mass-spec identity standards
Stability studiesFormulation and cold-chain stability research

Reference materials only

PeptidesVerified does not publish dosing schedules, titration protocols, reconstitution instructions or any application guidance. All product information is limited to analytical identity, purity and handling.

Reference information for laboratory research only. Not a recommendation for human or veterinary use. No application, dosing or administration guidance is provided.

Verified test results

Third-party independently lab tested.

Every batch is analysed by an ISO/IEC 17025 accredited independent laboratory before dispatch. The signed COA travels with your order — tap a certificate to view it.

Certificate of analysis
99.68%
Purity by HPLC
ISO/IEC 17025Independent labBatch-matched
PurityHPLC · spec ≥ 98%
99.68% PASS
IdentityMass spec
Confirmed PASS
Heavy metalsICP-MS
Not detected PASS
SterilityUSP <71>
No growth PASS
EndotoxinLAL
< 0.05 EU/mL PASS
RT40 COA
RT40 · latest batchView COA →
TZ40 COA
TZ40 · latest batchView COA →
🧪

For laboratory research use only

PeptidesVerified supplies reference-grade research compounds exclusively to qualified researchers and laboratories for in-vitro and laboratory research. These products are not for human or veterinary use, are not medicines, supplements or therapeutic products, and have not been evaluated by the FDA or MHRA. No medical, therapeutic or human-use claims are made. Buyers confirm they are 21+ and purchasing for legitimate research purposes.

Technical specifications

Compound information.

Molecular profile

RT40

TypeTriple-target research reference
Amino acids39
Molecular weight4,731 g/mol
Reference codeRTPEN40
FormatPre-filled 40 mg pen
Storage & handling

Stability

Keep refrigeratedDo not freezeProtect from light
Sealed pen, 2–8°CFull shelf life
Handling temperature2–8°C throughout
AccessoriesNeedles & alcohol swabs

Why researchers choose us.

🔬

Third-party lab tested

Every batch HPLC-verified by an independent ISO 17025 lab; signed COA with each order.

🚚

Free 24h UK dispatch

Shipped from the UK, cold-chain packed and validated for 96 hours in transit.

💳

Multiple payment methods

Card processors, bank transfer (BACS · SEPA · SWIFT) and crypto — never dependent on one provider.

💬

Direct support

Quotes, batch COAs and order tracking handled directly over WhatsApp.

Multiple secure payment methods

Pay the way that works for your lab.

We work with multiple payment processors and settlement rails so your research supply is never interrupted by a single provider. Payment details are shared privately after your enquiry.

💳

Card payment

Multiple card processors accepted — Visa, Mastercard and Amex — via secure invoice link.

Multiple processors · 3DS
🏦

Bank transfer

UK Faster Payments & BACS, SEPA in EUR, and international wire (SWIFT) for global labs.

GBP · EUR · USD

Crypto

Bitcoin, Ethereum and major stablecoins for fast, low-fee settlement worldwide.

BTC · ETH · USDT · USDC
Business continuity: we maintain multiple card processors and non-card rails (bank transfer, crypto) so a single processor issue never delays your research supply. All payments are business-to-business, invoiced to the researcher or institution.

Frequently asked.

Are these products for human or animal use?
No. All research pens are sold strictly as reference-grade laboratory research reagents for in-vitro and laboratory research by qualified professionals aged 21+. They are not for human consumption, animal consumption, or any therapeutic, diagnostic or veterinary use. They are not medicines, supplements or cosmetics and hold no product licence.
Do you provide dosing, administration or protocol instructions?
No. PeptidesVerified does not publish or provide any dosing schedules, titration protocols, reconstitution methods, application guidance, injection instructions or usage recommendations. All product information is limited to analytical identity, purity, molecular characterisation and cold-chain handling.
Is it really independently lab tested?
Yes — every batch is analysed by an ISO/IEC 17025 accredited independent third-party laboratory. Current batches release at 99.68% HPLC purity, and the signed COA ships with your order and is viewable above.
What payment methods do you accept?
We work with multiple card processors (Visa, Mastercard, Amex via secure invoice), bank transfer (UK Faster Payments / BACS, SEPA in EUR, SWIFT wire), and crypto (BTC, ETH, USDT, USDC). Maintaining several processors and non-card rails means research supply is never blocked by a single provider.
How does quantity pricing work?
During the End of Summer Sale: 1–4 pens are £129 each, 5–9 pens drop to £119 each (best offer), and 10+ pens are £99 each. Combine RT40, TZ40 and SM40 in a single order to reach a tier.
How fast is shipping?
Free 24-hour dispatch from the UK, cold-chain packed and validated for 96 hours in transit. Tracking is shared over WhatsApp.
How should the pens be stored?
Store refrigerated at 2–8°C, do not freeze, and protect from light — standard cold-chain handling for a research reference reagent. No usage schedule is provided.
Compliance statement

For laboratory research use only

All materials offered by PeptidesVerified Ltd, trading as PeptidesVerified, are supplied strictly and exclusively for in-vitro laboratory research and analytical purposes. They are sold only to laboratories, qualified researchers, and research institutions. They are not medicines, not natural health products, not dietary supplements, and not cosmetics, and they hold no Marketing Authorisation or product licence from the MHRA, the FDA or any other regulator.

Our products are not intended for human consumption, human or veterinary administration, diagnostic use, or therapeutic use of any kind, and must not be used for any such purpose. Any use outside in-vitro laboratory research is strictly prohibited and voids all warranties and remedies. We do not provide, and will not respond to requests for, dosing, clinical or usage guidance for humans or animals.

By ordering, the purchaser confirms they are of legal age (21+), acting for a legitimate laboratory or research purpose, and will handle, store, and dispose of all materials in accordance with applicable UK and local regulations. Full conditions are set out in our Terms & Conditions and Research Use FAQ.

Research use only. RT40 Pen, TZ40 Pen and SM40 Pen are sold exclusively as laboratory research reagents for in-vitro and laboratory research by qualified professionals aged 21 and over. Not for human or veterinary consumption, not a medicine, supplement or therapeutic product, and not evaluated by the FDA or MHRA. No claims are made regarding the diagnosis, treatment, cure or prevention of any disease or condition.
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