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Synedica Laboratories

Retatrutide · Metabolic

Reta Pen 60mg

Retatrutide acts on the GIP, GLP-1 and glucagon receptors.

Synedica Laboratories makes peptide and hormone formulations for metabolic, recovery and endocrine research. Batches are tested by an external laboratory, and passed certificates are published in the certificate register.

Strength
60mg
Format
Injection pen
View formulationAll formulations

Official website of Synedica Laboratories, the manufacturer. Official channels

10 formulations in 4 research areas

Formulations

All formulations

Research areas

What each active ingredient acts on

Compound reference

  • Metabolic

    Metabolic research

    Incretin analogues act on the receptors that control insulin release, appetite and gastric emptying. Each added receptor target changes how the compound affects blood glucose and energy balance.

    Active ingredientActs on
    RetatrutideGIP, GLP-1 and glucagon receptors
    TirzepatideGIP and GLP-1 receptors
    SemaglutideGLP-1 receptor

    In the range

    Reta Pen 40mgReta Liquid 120mgSema Pen 8mgTirze Pen 40mgReta Pen 60mg

  • Recovery

    Growth and tissue repair research

    Growth hormone acts on the GH receptor and drives IGF-1 release from the liver. The repair peptides are studied in tendon, muscle and gut tissue models.

    Active ingredientActs on
    Somatotropin (HGH)Growth hormone receptor, IGF-1 axis
    BPC-157Nitric oxide and VEGF signalling in tissue repair
    TB-500Actin regulation and cell migration
    BiotinCofactor of carboxylase enzymes

    In the range

    HGH 120iu PenBPC157+TB500 40mgBiotin Pen 40mg

  • Endocrine

    Endocrine and hormone research

    Testosterone acts directly on the androgen receptor. hCG acts on the LH receptor, which drives the testes to produce their own testosterone.

    Active ingredientActs on
    TestosteroneAndrogen receptor
    hCGLH receptor in the testes

    In the range

    TRT+HCG Pen

  • Pigmentation

    Pigmentation research

    Melanotan II is a synthetic analogue of alpha-MSH. It acts on melanocortin receptors, and through MC1R it raises melanin production in the skin.

    Active ingredientActs on
    Melanotan IIMelanocortin receptors (MC1R to MC5R)

    In the range

    MT2 Spray 20mg

Batches tested by an external laboratory

  • Identity and purity

    Each certificate reports identity by ESI mass spectrometry and purity by HPLC.

  • Results per test

    Each test is listed with its method, specification and measured result.

  • Linked to the unit

    Each unit code links to its batch and the batch certificate.

Browse batch certificatesHow we test

From production to certificate

  1. 01

    Specification set

    Active ingredient, format and strength are documented before production.

  2. 02

    Batch produced

    Each batch is recorded with its batch number and release status.

  3. 03

    Batch tested

    An external laboratory tests identity and purity against the specification.

  4. 04

    Certificate published

    Passed certificates are published under their report number and linked from each unit code.

Certificate register

Open the certificate register
  • 11Batches with a certificate
  • 11Batch certificates published
  • 165Test results published

Unit verification

How to check a pack

  1. 01

    Look at the seals

    The holographic seal and the tamper seal should both be present and intact. If either is missing or broken, do not rely on the pack and report it.

  2. 02

    Scratch off the panel

    Under it are the unit QR code and its 6-character code. The QR code inside the box is the same on every pack and opens a general information page.

  3. 03

    Scan or enter the code

    The code is matched against the register. The result shows the formulation, the batch and its certificate, and you can register the unit to your email or phone number.

Scratch to reveal the unit code

Drag across the grey panel to scratch it off.

Sample code

K7M2QX

Check a unit

Enter the 6-character code

Codes never contain the letters O or I, or the digits 0 or 1.

Health library

Recent articles

All articlesPeptide reference41

Research trendsGuide

What a peptide research protocol must document

Characterisation by LC-MS/MS and HPLC-UV, a pre-registered protocol and lot traceability all come before any biological reading.

Feb 27, 2026 · 4 min readRead article

Research trendsEducational

Sex differences in peptide research design

GH secretion, receptor expression and pharmacokinetics differ by sex, which changes how preclinical models and trial arms are planned.

Feb 25, 2026 · 4 min readRead article

Trends

Reading peptide claims in the media

Attention usually arrives before the data. How to check a circulating claim against published trials and preclinical work.

Feb 23, 2026 · 3 min readRead article

Scope

This site provides research and safety documentation only. It does not provide diagnosis, treatment recommendations, prescribing guidance, or a substitute for review by a qualified medical professional.