40 mgContents per pen
PrefilledResearch presentation
1 / 2 / 5Available pack sizes

Product insert included. Batch documentation available on request.

Laboratory research supply

Retatrutide.40 mg pen.

Prefilled Retatrutide pens, supplied exclusively for laboratory research. Choose one, two or five pens.

Choose your pack In stock
$209.00 per pen · $5.23 per mg
Checkout total: $228.00 including $19 shipping
Order now. Arrange payment by email.

No payment is taken online. We email you after checkout and dispatch once payment is received.

Quality & documentation
Worldwide shipping

$19 for one pen. Free for two or more.

Protective packaging

Securely packed for transit.

Independent testing

Independent Janoshik analytical testing with a sample-specific purity result.

Order support

Payment arranged by email after checkout.

Ordering

Your order, step by step.

Place an unpaid order online. We take care of the next steps by email.

  1. 1

    Choose your pack

    Select one, two or five pens and confirm laboratory research use at checkout.

  2. 2

    Arrange payment

    Our team emails you with payment instructions. No payment is taken online.

  3. 3

    Receive tracking

    We dispatch after payment is received and send your tracking details by email.

Independent analytical report

Independent testing, clearly presented.

Independent testing by Janoshik Analytical reported 99.729% peptide purity for the tested sample. The result is sample-specific. Request the report and sample details from our team.

JANOSHIK REPORT
Reported peptide purity 99.729%

Janoshik Analytical
Request the report and sample details from our team.

This result applies only to the tested sample.

Research standards

Clear evidence. Clear limits.

We state exactly what is documented and keep research-use boundaries explicit.

What we do
Present analytical reports with their exact task, sample and batch references
Inspect and seal every pen before dispatch
Pack every order for secure transit
Provide documentation for what you received on request
Answer documentation questions directly
What we do not do
Give dosing, administration or human-use guidance
Make medical, therapeutic or outcome claims
Publish before-and-after or transformation imagery
Invent certifications, endorsements or test results
Run countdown timers or fake scarcity
Customer feedback

What buyers say about the service.

★★★★★ CUSTOMER REVIEW

Ordered on a Tuesday afternoon and it arrived Thursday morning. The product insert was in the box exactly as described on the product page.

Marcus T. · Customer review · 3 weeks ago
★★★★★ CUSTOMER REVIEW

Packaging was neat, secure and properly sealed. Had a documentation question and support answered the same day.

Priya R. · Customer review · 1 month ago
★★★★★ CUSTOMER REVIEW

Smooth ordering process, no confusing upsells or subscription tricks. Exactly what was promised, and the 2-pack shipping discount made the decision easy.

David K. · Customer review · 6 weeks ago
Our commitment

Documented and packed with care.

Product insert included with every order. Batch documentation is available on request. Orders are securely packaged for transit. Due to the nature of the product, all sales are final — if a shipping error affects your order, contact us and we'll look into it.

All sales final
Due to the nature of the product
Protective
Secure packaging, every order
Documented
Product insert included with every order. Batch documentation is available on request.
1 working day
Support reply time
Before you order

Questions we get most.

Anything not covered here, our team answers directly, within one working day.

Contact support

A 40 mg prefilled Retatrutide pen supplied for laboratory research use. Product insert included with every order. Batch documentation is available on request.

No. We do not provide medical, dosing, administration or human-use guidance, and our team cannot advise on it.

We dispatch after payment is received. Our team confirms expected timing by email. Delivery times depend on your destination.

Orders are prepared in protective packaging for secure transit. Shipping is $19 on a single pen and free on 2 or more pens.

Due to the nature of the product, all sales are final and we're unable to accept returns. If a shipping error affects your order or it is lost in transit, contact us with your order number and we'll look into it.

Place your order at checkout using Manual payment. No money is taken online. Our team will email you to arrange payment, and your order is dispatched after payment is received.

We accept orders worldwide. Available destinations are shown at checkout. Shipping is $19 USD for one pen and free for two or more pens.

Independent testing by Janoshik Analytical reported 99.729% peptide purity for the tested sample. This result applies only to the tested sample. Contact our team to request the report and sample details.