My Reta
RETAKLIK 2.0 (Retalintide) 44mg
Lab Tested 99%

Research Use Only. Not for human consumption, medical use, diagnosis, or treatment. By purchasing, you agree to laboratory use guidelines.

RETAKLIK 2.0 (Retalintide) 44mg

£180Pre-Order
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Pre-Order · Limited StocksPre-order now for delivery on 6th October. Strictly limited stock allocation on a 1st come, 1st served basis.
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RETAKLIK 2.0 (APEX Pharma) is a dual-compound research pen combining 40mg Retaklik and 4mg Cagrilintide (44mg total strength in 3ml) in a single multi-dose pen. Designed exclusively for in vitro and in vivo laboratory research applications studying metabolic regulation and receptor signalling. Delivered pre-filled in sealed format with 12 disposable needles. Research use only — strictly not for human consumption or animals.

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 — triple receptor agonist — supplied as 40mg or 60mg. Retaklik 2.0 is a dual-compound APEX formula: 40mg Retaklik plus 4mg Cagrilintide (Retalintide), combined in one 3ml pen (44mg total strength). One pen, two pathways to study.

Standard Retaklik

  • Triple Receptor Agonist
  • 40mg or 60mg options
  • Multi-dose pen

Retaklik 2.0 (APEX)

  • Retaklik 40mg + Cagrilintide 4mg
  • 44mg total strength in 3ml
  • Single multi-dose APEX pen

Why We Moved to Multi-Dose APEX 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 — 1x APEX pen, 12x disposable 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 Retaklik — 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 1x pre-filled multi-dose APEX research pen (40mg Retaklik + 4mg Cagrilintide in 3ml), 12x disposable needles, and an instruction guide — 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.

Secure Stripe PaymentUK Internal Shipping
Official APEX Partner Live Verification

Each research unit features an authentic tamper-evident holographic seal with a unique scratch-to-reveal security code. Enter your code at apexpharma.io/verify to confirm instant product authenticity and view the live Certificate of Analysis for your exact batch.

Frequently Asked Questions

What is Retaklik 2.0?

Retaklik 2.0 is a dual-compound APEX research pen combining Retatrutide and Cagrilintide (Retalintide). It's built for researchers who want to study both GLP-1/GIP/glucagon and amylin receptor pathways 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 APEX formula: 40mg Retatrutide plus 4mg Cagrilintide (44mg total strength), combined in a single 3ml multi-dose pen.

Do I need to reconstitute Retaklik 2.0?

No. Retaklik 2.0 arrives as a ready-to-use APEX 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 an amylin analogue designed to copy amylin, a hormone the body already produces 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.

What's included in the box?

Each Retaklik 2.0 order includes 1x pre-filled multi-dose APEX pen (40mg Retatrutide + 4mg Cagrilintide in 3ml), 12x disposable needles, and an instruction guide.

Is Retaklik 2.0 lab tested?

Yes. Every APEX batch is independently verified for purity — cross-reference the batch number against our Certificate of Analysis library before use.

When will my Retaklik 2.0 pre-order be delivered?

Retaklik 2.0 is currently open for pre-order due to high laboratory research demand. Incoming stock is strictly allocated on a first-come, first-served basis, with delivery scheduled for Tuesday 6th October via Royal Mail Tracked delivery.

Looking for the standard strength? Buy Retaklik 40mg UK