Fat Loss

Fat Loss Research Peptides for Sale UK | Body Composition Research Overview

This collection covers the most studied research peptides in the metabolic and body composition literature. Each compound targets a different receptor system studied in the fat metabolism field — from direct beta-adrenergic activity on adipose tissue in cell studies, through single-receptor GLP-1 research, dual-receptor GLP-1/GIP research, to the newest triple-receptor GLP-1/GIP/Glucagon compound.

Every vial is supplied strictly as a research chemical for laboratory use. Compounds in this collection have been the subject of published preclinical studies and — for the GLP-1 class — large registered clinical trials such as the STEP, SURMOUNT, and Phase 2 Retatrutide programmes. Research references are provided for scientific context only.

Every vial is tested to ≥98% HPLC purity by an independent laboratory before dispatch, with identity confirmed by mass spectrometry and a batch-specific certificate of analysis included on every order.

Sold for research use only. Not for human consumption. Not for weight loss use.

AOD-9604 — Research Overview

AOD-9604 is a modified 16-amino-acid fragment engineered from the C-terminal region of human growth hormone. In published research, it has been studied for selective activity on beta-3 adrenergic receptors on adipose (fat) cells in laboratory models, without triggering the growth hormone receptor or measurable elevation of IGF-1.

This receptor selectivity is what makes AOD-9604 a useful tool compound in adipose tissue research — it allows investigation of the lipolytic pathway independently of confounding growth-hormone-mediated effects seen with full-length HGH.

• Beta-3 adrenergic pathway research — cell studies investigate lipolysis (fat cell breakdown) via the beta-3 receptor
• Lipogenesis inhibition research — laboratory studies investigate reduced fat synthesis in adipocyte cell lines
• No documented IGF-1 elevation in research — published trials report no measurable IGF-1 or blood glucose changes
• Clinical trial safety data — Phase IIb clinical trial data (METAOD005) with ~900 participants reported safety and tolerability equivalent to placebo across doses from 0.25 mg to 30 mg
• Studied in both male and female subject populations — clinical research included mixed-sex populations

Supplied as a 10mg freeze-dried research vial, ≥98% HPLC purity, certificate of analysis included.

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HGH Fragment 176-191 — Research Overview

HGH Fragment 176-191 is the native 16-amino-acid sequence from the C-terminal region of human growth hormone — the same region that AOD-9604 was engineered from. In published research, it has been studied in animal models for effects on lipolysis and lipogenesis pathways in adipose tissue, independent of the somatogenic (growth-promoting) actions of full-length HGH.

This compound is used in research as a reference against the modified AOD-9604 for comparative pathway studies in adipocyte models.

Note: Regulatory status of HGH fragments may vary by jurisdiction. Researchers are responsible for verifying local compliance before ordering.

Supplied as a 5mg freeze-dried research vial, ≥98% HPLC purity, certificate of analysis included.

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GLP-1 Research Peptides — Semaglutide, Tirzepatide, Retatrutide

The GLP-1 receptor agonist class contains three of the most published compounds in modern metabolic research. All three are prescription-only medicines (POM) in the UK and are supplied here strictly as research chemicals for laboratory use. The research references below are provided for scientific context only.

Semaglutide is a single-receptor GLP-1 agonist and the reference compound for GLP-1 receptor research. The STEP clinical trial programme is the largest published dataset for GLP-1 receptor activation in obesity research. In the STEP 1 trial, participants receiving 2.4 mg weekly demonstrated mean body-weight reduction of approximately 14.9% over 68 weeks compared with placebo. Supplied as a 10 mg research vial.

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Tirzepatide is a dual GLP-1 / GIP receptor agonist — studied in research for co-activation of the GLP-1 and GIP incretin receptors. The SURMOUNT-1 trial reported mean body-weight reduction of up to 22.5% at the highest dose (15 mg) over 72 weeks. In research, Tirzepatide is used as a tool compound for investigating dual-incretin receptor pathways. Supplied as a 10 mg research vial.

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Retatrutide is a triple GLP-1 / GIP / Glucagon receptor agonist. Phase 2 trial data published in the New England Journal of Medicine (2023) reported mean body-weight reduction of 24.2% at the 12 mg dose over 48 weeks. In research, Retatrutide is used to investigate triple-receptor incretin pathway biology. Supplied as a 10 mg research vial.

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Body Composition Research Stacks

Fat Loss Research Stack (HGH Fragment + AOD-9604) — Two adipose-targeting research compounds derived from the same C-terminal region of growth hormone. Useful for comparative pathway studies between the native fragment and the engineered analogue. Lower combined price than buying separately.

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Appetite + Fat Loss Research Stack — A Semaglutide-anchored research bundle for laboratory investigation of GLP-1 receptor pathways. Contains POM compounds — supplied for research use only.

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Metabolic Research Stack (Tirzepatide + Tesamorelin + AOD-9604) — Three research compounds from three different mechanistic classes. Tirzepatide covers the dual-incretin pathway. Tesamorelin covers the growth hormone-releasing hormone (GHRH) pathway. AOD-9604 covers the beta-3 adrenergic pathway. Useful for comparative research designs across mechanistic categories.

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Common Research Questions

What are fat loss peptides in the research context?

In research, "fat loss" or "body composition" peptides are short-chain protein compounds used as tool molecules to investigate lipolysis, lipogenesis, and incretin receptor pathways in cell cultures and animal models. They are not sold or supplied as weight loss products.

What is the difference between single, dual, and triple receptor GLP-1 compounds?

Semaglutide activates a single receptor (GLP-1). Tirzepatide activates two receptors (GLP-1 and GIP). Retatrutide activates three receptors (GLP-1, GIP, and Glucagon). Each is used in research to investigate the incretin receptor system at different levels of pathway complexity.

What is the difference between AOD-9604 and HGH Fragment 176-191?

HGH Fragment 176-191 is the native amino-acid sequence from the C-terminal region of growth hormone. AOD-9604 is an engineered analogue with a modification (a tyrosine addition) at the N-terminus. Both are used in research to investigate the lipolytic activity of this growth hormone region.

Why is purity important for metabolic research peptides?

Impurities in peptide vials can introduce off-target receptor activity that confounds cell and animal study results. Every vial in this collection is ≥98% HPLC pure with identity confirmed by mass spectrometry.

Why Buy Research Peptides from Pure Grade Labs

• ✓  ≥98% purity — tested by an independent lab before every dispatch
• ✓  Certificate of analysis included — scan the QR code on the vial to verify instantly
• ✓  Identity confirmed by mass spectrometry — every batch, no exceptions
• ✓  UK supply — fast domestic dispatch for laboratory customers
• ✓  Bacteriostatic water available separately — for laboratory reconstitution