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Peptides for weight loss

This category mixes registered prescription medicines (semaglutide, tirzepatide, liraglutide) with unapproved or investigational peptides marketed for weight loss.

Regulation note: GLP-1 medicines are registered prescription products. Investigational peptides marketed for weight loss are a separate, unapproved category — labels alone do not make supply lawful.

Investigational

Retatrutide

Triple-agonist (investigational)

An investigational metabolic peptide in clinical trials.

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Not ARTG-approved

AOD-9604

Growth-hormone fragment

A fragment of growth hormone historically investigated in metabolic contexts.

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Prescription medicine

Semaglutide

GLP-1 receptor agonist

A GLP-1 receptor agonist registered for type 2 diabetes and chronic weight management.

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Prescription medicine

Tirzepatide

Dual GIP/GLP-1 agonist

A dual GIP/GLP-1 receptor agonist used in metabolic and weight management contexts.

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Prescription medicine

Liraglutide

GLP-1 receptor agonist

An earlier-generation GLP-1 receptor agonist used in diabetes and weight-management contexts.

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Investigational

Adipotide

Investigational metabolic peptide (FTPP)

An investigational peptide discussed in metabolic and weight contexts.

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Prescription medicine

Dulaglutide

GLP-1 receptor agonist

A once-weekly GLP-1 receptor agonist used in type 2 diabetes.

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Prescription medicine

Exenatide

GLP-1 receptor agonist

An earlier-generation GLP-1 receptor agonist used in type 2 diabetes.

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Investigational

Cagrilintide

Amylin analogue (investigational)

A long-acting amylin analogue studied for weight management, often alongside semaglutide (as “CagriSema”).

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Investigational

Survodutide

GLP-1 / glucagon dual agonist (investigational)

An investigational dual GLP-1/glucagon receptor agonist studied for weight management and liver disease.

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Investigational

Mazdutide

GLP-1 / glucagon dual agonist (investigational)

An investigational dual GLP-1/glucagon receptor agonist studied for weight management.

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Not ARTG-approved

HGH Fragment 176-191

Growth-hormone fragment

A fragment of growth hormone marketed for fat loss; closely related to AOD-9604.

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Before considering anything in this category, read Are peptides legal in Australia? and Are peptides safe?. Then discuss any decision with a registered Australian health practitioner.

This is general education, not medical advice. Peptides.au does not sell, supply, recommend or promote any product or clinic. Always speak with a registered Australian health practitioner before making any health decision.