Pre-loaded Retatrutide research pens in 10mg and 20mg. No reconstitution, no draw-up — independently verified to 99%+ purity with a COA on every lot.
Two strengths, both pre-loaded and ready for the bench.
Every batch is sent to an accredited third-party laboratory and analysed by HPLC and mass spectrometry. Certificates of analysis are matched to lot numbers, so the vial in your hand traces back to real data — not a marketing claim.
We publish purity above 99% because that is what the chromatograms show. Lyophilised under controlled conditions, sealed with tamper-evident crimps and cold-shipped so the peptide reaches your bench exactly as it left ours.
From catalogue to bench in three steps.
Two pre-loaded Retatrutide pens — 10mg and 20mg. Each listing shows the current purity data and the lot its certificate of analysis belongs to.
Pay by Interac e-Transfer through an encrypted checkout. Orders over $150 ship free, and everything leaves in plain, unbranded packaging.
Orders are picked and dispatched within one business day, with tracking emailed the moment your parcel is scanned.
The things researchers ask us most.
No. Every compound sold by RetaExpress is supplied strictly for laboratory research. Our products are not drugs, supplements or food, and are not intended for human or veterinary consumption, diagnostic use or therapeutic use.
Each batch is analysed by an independent, accredited laboratory using HPLC and mass spectrometry. We publish results above 99% because that is what the chromatograms return, and every certificate of analysis is tied to the lot number printed on the vial.
Keep the pen refrigerated at 2-8°C and protected from light, with the cap fitted between uses. Do not freeze — a pre-loaded solution is damaged by freeze-thaw cycling, unlike a lyophilised powder. Allow the pen to reach room temperature before dialling a dose, and record your first-use date.
Orders are paid by Interac e-Transfer through our encrypted checkout. You will receive transfer instructions immediately after placing your order, and dispatch begins as soon as payment clears.
Orders placed before the daily cut-off are dispatched within one business day and typically arrive in two to five business days across Canada. Shipping is free over $150. Every parcel goes out in plain, unbranded packaging with no reference to contents.
Contact us within 48 hours of delivery with your order number and a photograph of the damage. We will replace any pen that arrives compromised — see our returns policy for full details.
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Research use only. We never share your details.
