Research Use Only. Not for human consumption, medical use, diagnosis, or treatment. By purchasing, you agree to laboratory use guidelines.
RETAKLIK 2.0 is a synthetic triple receptor agonist targeting GLP-1, GIP, and glucagon receptor pathways, designed exclusively for in vitro and in vivo laboratory research applications for studying metabolic regulation and receptor signalling in controlled settings. Supplied as 45mg in pre-filled research devices for controlled laboratory and R&D use only. Delivered in sealed format to support formulation assessment, compound stability testing, and delivery system evaluation. All products are for research purposes only. Not for human consumption, medical use, diagnosis, or treatment.
Retaklik 2.0 vs. Standard Retaklik — What's Actually Different
Retaklik and Retaklik 2.0 sound almost the same. They are not the same product. Standard Retaklik has one active compound — Retatrutide — supplied as 60mg across pre-split vials. Retaklik 2.0 is a dual-compound formula: 40mg Retatrutide plus 5mg Cagrilintide, combined in one 2.4ml pen. One pen, two pathways to study.
Standard Retaklik
- Retatrutide only
- 60mg total
- Pre-split vials
Retaklik 2.0
- Retatrutide + Cagrilintide
- 40mg + 5mg in 2.4ml
- Single multi-dose pen
Why We Moved to Pens (We Learned This the Hard Way)
Vials need work before they're ready. You mix powder with liquid, measure it out by hand, and try not to shake the vial too hard, since shaking can damage the peptide. Do all of that without spilling a drop, and you've had a good day.
True story: someone on our team once reconstituted a vial on the kitchen counter, knocked half of it onto the floor, nearly went ice-skating in their own socks, and tripped clean over Eddy — the office Alaskan Malamute, who'd wandered in to see what the noise was about. Nobody was hurt. The floor needed a mop. Eddy was unbothered.
A multi-dose pen skips all of that. No powder to mix, nothing to measure by hand, no vial to crack open. Retaklik 2.0 comes ready to go — pen, needles, and an instruction book in one box — so researchers get consistent, pre-mixed doses without the reconstitution step. Or the floor clean-up. Or Eddy.
What Is Cagrilintide?
Cagrilintide is the second compound in Retaklik 2.0. It's designed to copy amylin, a hormone the body already makes after eating. Pairing it with Retatrutide — a triple-receptor compound acting on GLP-1, GIP, and glucagon pathways — gives researchers one combination pen to study appetite regulation and metabolic pacing side by side, instead of running two separate products.
What's In The Box
Each order includes one multi-dose pen (40mg Retatrutide + 5mg Cagrilintide in 2.4ml), disposable needles, and an instruction book — everything needed to get started, nothing extra to buy.
Triple Tested
HPLC & MS verified for consistent potency thresholds.
Priority Post
Discreet Next Day Delivery on all research orders.
Janoshik Analytical Verification
All batches are independently verified. You can cross-reference the batch number with the report library.
View Certificate of Analysis →Frequently Asked Questions
What is Retaklik 2.0?
Retaklik 2.0 is a research pen with two compounds inside it: Retatrutide and Cagrilintide. It's built for researchers who want to study both compounds together, from one pen, instead of running two separate products.
What is the difference between Retaklik and Retaklik 2.0?
Standard Retaklik contains one compound — Retatrutide — supplied as 60mg across pre-split vials. Retaklik 2.0 is a dual-compound formula: 40mg Retatrutide plus 5mg Cagrilintide, combined in a single 2.4ml multi-dose pen.
Do I need to reconstitute Retaklik 2.0?
No. Retaklik 2.0 arrives as a ready-to-use multi-dose pen. There's no powder to mix, no exact measuring, and no vial to crack open before you can start.
Why choose a pen over a vial?
Vials need reconstituting, careful measuring, and a steady hand — get any part of it wrong and you've lost a dose (or spilled it across the bench). A pen skips all of that. It's pre-filled and pre-measured, so it's ready when the research is.
What is Cagrilintide?
Cagrilintide is a lab-made compound designed to copy amylin, a hormone the body already produces after eating. Researchers study it alongside Retatrutide to look at how the two interact on appetite and metabolic pathways.
What's included in the box?
Each Retaklik 2.0 order includes one multi-dose pen (40mg Retatrutide + 5mg Cagrilintide in 2.4ml), disposable needles, and an instruction book.
Is Retaklik 2.0 lab tested?
Yes. Every batch is independently verified for purity — cross-reference the batch number against our Certificate of Analysis library before use.
Looking for the standard strength? Buy Retaklik 40mg UK