Precision by design.
A research-grade retatrutide pen kit with batch-matched documentation, dual-layer certificate-of-analysis verification and serialised hologram authentication — engineered from molecule to packaging, for laboratories that audit their suppliers.
Dual-layer COA
Manufacturer analytics re-verified by an independent third-party laboratory. HPLC purity + MS identity, per lot.
Hologram authenticity
Serialised hologram label on every box (RD + 8 digits). Scan or enter the serial to check the record.
Cold chain 2–8 °C
Temperature-controlled handling from fill line to dispatch. Insulated shipper and data logger on request.
Tracked UK dispatch
Same-working-day dispatch before cut-off to the verified business address on the account.
Everything measured. Nothing assumed.
- 1×
Reta pen — 50 mg
Retatrutide research material in a sealed precision-dial pen format, batch-labelled and serial-matched to its certificate.
- 12×
Sterile needles
Single-use, individually sealed, supplied with disposal labelling for laboratory sharps handling.
- 1×
Documentation leaflet
Six-panel leaflet covering storage conditions, batch identification and disposal. It contains no use or dosing instructions.
Retatrutide Pen Kit
One SKU, one standard. Every value below is printed on the box, on the invoice and in the online batch record — and they always agree.
| Compound | Retatrutide (LY3437943), research grade |
|---|---|
| Content | 50 mg per pen |
| Needles | 12 × sterile, single-use, individually sealed |
| Purity method | HPLC (purity) · mass spectrometry (identity) |
| Current lot | RD-XXXX-X |
| Lot purity | XX.X % (HPLC) |
| Identity | Confirmed (MS) |
| Storage | 2–8 °C · protect from light · do not freeze |
| Packaging | FSC®-certified paperboard, moulded pulp insert, plastic-free, recyclable |
| Intended use | Laboratory research use only. Not for human consumption. |
£209per kit · trade account · ex VAT
Volume pricing is available to approved trade accounts and shown after KYC approval. Minimum order 5 units per SKU.
- Batch-matched COA
- Serial traceability
- Audit-ready records
- UK stock
Wholesale only · document-based KYC · research-use declaration required. For laboratory research use only. Not for human consumption.
Every box carries its own identity.
Serial on the box, record on the site, certificate on file — three points that always agree. Enter the serial from the hologram label to confirm the kit is on record and see its batch-matched certificate.
Verify a serial
One molecule. Three receptor pathways.
Retatrutide (LY3437943) is an investigational triple agonist studied in metabolic research for its activity at the GIP, GLP-1 and glucagon receptors. Published work examines receptor binding, signalling behaviour and metabolic endpoints in controlled experimental models. It is not a licensed medicine in the UK.
GIP receptor
Studied in insulinotropic and metabolic signalling models.
Why it matters: lets researchers map the incretin axis beyond GLP-1 alone.
GLP-1 receptor
Investigated in incretin-pathway and energy-balance research.
Why it matters: the best-characterised pathway in the metabolic-signalling literature.
Glucagon receptor
Explored in hepatic glucose and energy-expenditure models.
Why it matters: completes the triple-agonist profile studied in combination models.
Descriptions are provided for research context only and are not claims of therapeutic effect. Read the full research and UK regulatory overview →
Built for laboratories that audit their suppliers.
Batch-answerable
Every unit traces to a lot, a certificate and a verifier. Ask a batch code — get a record, not a promise.
UK entity & compliance
A registered English company with a Cornwall address, a Companies House number, ICO registration and a standing research-use-only compliance framework.
Dual-layer COA
Manufacturer analytics re-verified by an independent accredited laboratory before any batch is released.
Trade-first
One channel: verified wholesale accounts. No retail, no channel conflict, pricing that protects your margin.
Laboratories, distributors & research institutions.
Wholesale access is granted after verification: Companies House number, business type, document-based identity check and a signed research-use declaration. Approved accounts unlock trade pricing with a minimum order of 5 units per SKU and typical onboarding within two working days.
Apply for trade access →
Questions, filed properly.
Is the Reta Dynamic Pen Kit for human use?
No. All Reta Dynamic products are supplied strictly for laboratory research use only. They are not for human consumption and not for medical, therapeutic, diagnostic or veterinary use. Retatrutide is not a licensed medicine in the UK.
Who can buy a Reta Dynamic kit?
Laboratories, research institutions, distributors and registered businesses that pass our trade verification: Companies House (or equivalent) number, business type, document-based identity check and a signed research-use declaration. We do not sell to individuals or to the public.
How do I verify a kit is genuine?
Each box carries a serialised hologram label (format RD + 8 digits) with a QR code. Enter the serial on the Verify page to confirm it is on record and to see its batch-matched certificate of analysis.
What documentation comes with each kit?
A batch-matched certificate of analysis covering HPLC purity and mass-spectrometry identity, re-verified by an independent third-party laboratory. The batch code on the label, the invoice and the online record all match.
How should the kit be stored on receipt?
Refrigerated at 2–8 °C, protected from light and temperature swings. Do not freeze. Storage guidance is provided for laboratory handling and is not use guidance.
How is the kit dispatched?
Temperature-controlled, tracked UK dispatch to the verified business address on the trade account. Orders placed before the daily cut-off dispatch the same working day. Insulated shippers and data loggers are available on request.
What is your returns policy?
Unopened kits in original sealed condition may be returned within 30 days. For chain-of-custody and safety reasons, opened or temperature-compromised materials cannot be accepted.