Retatrutide Auto-Injection Pen
SKU: PEN-RETA-10
Multiple sizes available — choose a size below
Ships from Jacksonville, FL · Free shipping on orders over $200
Buy Retatrutide 40mg Auto-Injection Pen The Retatrutide 40mg Auto-Injection Pen is a prefilled pen, ready to use straight out of the box. It is in stock now and ships with tracking. Why Choose the Auto-Injection Pen Ready out of the box. Prefilled — no reconstitution, no bacteriostatic water, no vial transfer. Complete injector. A standalone pen — nothing else to buy. In stock now. Orders ship with tracking. What You Get Product Retatrutide 40mg Auto-Injection Pen Format Prefilled auto-injection pen Sizes 10mg, 20mg, 30mg, 40mg, 48mg Availability In stock — ships with tracking Pen vs. Vial Auto-Injection Pen (this listing) Complete prefilled pen. Nothing to mix, nothing else to buy. Retatrutide (LY3437943) 5mg (lyophilized vial) Powder that must be reconstituted with bacteriostatic water before use. Shipping Orders ship from Jacksonville, Florida using the shipping method you choose at checkout. We ship to U.S. and Canadian addresses (Canada ships Express for pens), Monday through Friday. For laboratory research use only. Not for human consumption.
Additional product information
We'll reply with the lot-specific COA where one is available for your selection.
Reference packaging image — confirm current lot details before ordering. Request current batch COA.
Bulk & lab orders
Need larger research quantities of this compound? Contact us for a quoted order. Prices shown here are per unit — review discounts, shipping and final total at checkout.
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- Ships from Jacksonville, FL · Free shipping on orders over $200. Otherwise UPS Ground $8.
- Bacteriostatic water included — the correct amount for reconstitution, in every order.
- Quality & documentation · Batch-traceable · Veteran-owned · 20% of profits donated to animal charities.
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- Sealed, lyophilized vial — 10mg
- Bacteriostatic water — appropriate size for reconstitution, included free
- Certificate of Analysis available — view COAs
Retatrutide pen measurement reference
These figures assume the 10 mg pen holds 3 mL, giving 3.333 mg/mL. All syringe marks are for a U-100 insulin syringe, where 100 units = 1 mL.
| Amount | Volume | Units (U-100) |
|---|---|---|
| 2 mg | 0.6 mL | 60 units |
| 4 mg | 1.2 mL | 120 units |
| 8 mg | 2.4 mL | 240 units |
Retatrutide frequency: once weekly, stepped titration from clinical trials — dose steps taken from published clinical-trial / labeled titration schedules. For laboratory research use only. Not for human consumption.
Before first use
Store the sealed prefilled pen refrigerated at 2–8 °C in its packaging, protected from light. Do not freeze.
Pen in use
After first use, keep the pen refrigerated at 2–8 °C with the cap on and use within roughly 28–30 days. Never freeze a liquid pen.
Retatrutide pen questions
- How many units is 2 mg of Retatrutide in the 10 mg Retatrutide pen?
- The 10 mg pen is assumed to hold 3 mL, giving 3.333 mg/mL of Retatrutide. 2 mg is 0.6 mL, which is 60 units on a U-100 insulin syringe scale.
- Does the Retatrutide pen need to be reconstituted?
- No. The pen is prefilled with liquid, so no bacteriostatic water is added. The figures here simply divide the 10 mg total across the assumed 3 mL fill.
- How should a prefilled Retatrutide pen be stored?
- Keep the pen refrigerated at 2–8 °C, protected from light, and do not freeze. Once in use, laboratory handling records commonly treat prefilled pens as usable for about 28–30 days refrigerated.
Research use only. This reference is arithmetic for handling prefilled research material in a laboratory setting — it is not medical guidance. For laboratory research use only. Not for human consumption.
What to expect from Dr Jays
Review product documentation, shipping details and support options before you order.
Documentation on request
Each research compound is analysed by HPLC with identity confirmed by mass spectrometry. Ask for the Certificate of Analysis covering current stock and we will send the document for the lot shipping to you.
Documentation libraryReference specifications published
Manufacturer ADS/SDS reference sheets for hundreds of compounds are published on this site, alongside handling, storage and reconstitution guidance.
Quality standardsClear fulfilment timing
Orders are processed within 1–2 business days. Standard delivery is typically 3–7 business days after processing. Free shipping on orders over $200. Otherwise UPS Ground $8.
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Contact supportVeteran owned, fulfilled in Florida
Dr Jays Peptides is veteran owned and operated, and orders are packed and dispatched from Jacksonville, Florida.
About usRetatrutide Auto-Injection Pen — frequently asked questions
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