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Showing 1-8 of 8 products
buy-cagrilintide-peptide-10mg
Weight Loss

Cagrilintide 10mg

$60.00
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buy-cagrilintide-peptide-10mg
Weight Loss

Cagrilintide 10mg

Cagrilintide 10mg long-acting amylin receptor agonist research peptide. GMP-sourced. Ships to Canada, Australia, UK and Europe. For research use only.…

$60.00
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tirzepatide-peptide-for-sale-30mg
Weight Loss

Tirzepatide 30mg

$60.00
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tirzepatide-peptide-for-sale-30mg
Weight Loss

Tirzepatide 30mg

Tirzepatide 30mg dual GLP-1/GIP research peptide. Purity: 99.82% (Full QC Panel, ILS Labs). GMP-sourced. Ships to Canada, Australia, UK and…

$60.00
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semaglutide-peptide-for-sale-20mg
Weight Loss

Semaglutide 20mg

$85.00
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semaglutide-peptide-for-sale-20mg
Weight Loss

Semaglutide 20mg

Semaglutide 20mg GLP-1 research peptide. Purity: 99.07% (Full QC Panel, ILS Labs). GMP-sourced. Ships to Canada, Australia, UK and Europe.…

$85.00
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aod-9604-peptide-for-sale-5mg
Weight Loss

AOD-9604 5mg

$50.00
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aod-9604-peptide-for-sale-5mg
Weight Loss

AOD-9604 5mg

AOD-9604 5mg modified hGH fragment research peptide. Purity: 99.789%. White lyophilised powder. GMP-sourced. Ships to Canada, Australia, UK and Europe.…

$50.00
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retatrutide-peptide-for-sale-30mg
Weight Loss

Retatrutide 30mg

$120.00
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retatrutide-peptide-for-sale-30mg
Weight Loss

Retatrutide 30mg

Retatrutide 30mg triple-agonist (GLP-1/GIP/glucagon) research peptide. Purity: 99.57% (Full QC Panel, ILS Labs). GMP-sourced. Ships to Canada, Australia, UK and…

$120.00
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retatrutide-peptide-for-sale-20mg
Weight Loss

Retatrutide 20mg

$90.00
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retatrutide-peptide-for-sale-20mg
Weight Loss

Retatrutide 20mg

Retatrutide 20mg triple-agonist (GLP-1/GIP/glucagon) research peptide. Purity: 99.56% (Full QC Panel, ILS Labs). GMP-sourced. Ships to Canada, Australia, UK and…

$90.00
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retatrutide-peptide-for-sale-10mg
Weight Loss

Retatrutide 10mg

$60.00
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retatrutide-peptide-for-sale-10mg
Weight Loss

Retatrutide 10mg

Retatrutide 10mg triple-agonist (GLP-1/GIP/glucagon) research peptide. Purity: 99.84% (Full QC Panel, ILS Labs). GMP-sourced. Ships to Canada, Australia, UK and…

$60.00
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tirzepatide-peptide-for-sale-60mg
Weight Loss

Tirzepatide 60mg

$100.00
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tirzepatide-peptide-for-sale-60mg
Weight Loss

Tirzepatide 60mg

Tirzepatide 60mg dual GLP-1/GIP research peptide. Purity: 99.97%. GMP-sourced. Ships to Canada, Australia, UK and Europe. For research use only.

$100.00
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Weight Loss

Peptalix Labs supplies the best weight loss peptides for laboratory and scientific research, covering the most clinically significant incretin-receptor and metabolic-research compounds available today. Our weight loss category includes GLP-1, dual GLP-1/GIP, and triple-agonist research peptides — each independently batch-tested for purity and identity via comprehensive full QC panels, GMP-sourced, and lyophilised for maximum stability.

What Are GLP-1 Family Research Peptides?

GLP-1 (glucagon-like peptide-1) family peptides are incretin-receptor agonists studied extensively in metabolic, glycaemic, and appetite-regulation research. Compounds such as Semaglutide and Tirzepatide are FDA-approved active pharmaceutical ingredients, while next-generation compounds like Retatrutide extend the mechanism to a third receptor pathway.

Our Weight Loss Peptide Range

The Peptalix Labs weight loss category includes: Semaglutide 20mg — selective GLP-1 receptor agonist, FDA-approved API Tirzepatide 30mg — dual GLP-1/GIP receptor agonist, FDA-approved API Tirzepatide 60mg — higher-dose dual receptor agonist Retatrutide 10mg — triple agonist (GLP-1/GIP/glucagon), investigational Retatrutide 20mg — triple agonist, mid-dose research vial Retatrutide 30mg — triple agonist, high-dose research vial AOD-9604 5mg — modified hGH fragment studied for lipolytic activity Cagrilintide 10mg — amylin analogue, often studied alongside GLP-1 agonists

Quality Standards for Every Weight Loss Peptide

Most products in this category undergo a comprehensive full QC panel via ILS Laboratories (ISO/IEC 17025 accredited), including HPLC purity testing, heavy metals analysis, sterility testing (PCR), and fentanyl screening — a more extensive panel than standard purity testing alone. Select products are tested by Freedom Diagnostics using HPLC-UV with mass spectrometry. Certificates of Analysis are published per batch for full transparency.

Shipping Weight Loss Research Peptides

Peptalix Labs ships all weight loss research peptides same-day from our USA facility on orders placed before the daily cut-off. International shipping is available to Canada, Australia, the United Kingdom, and most of Europe, with tracked delivery on every order. Research Use Only. All weight loss peptides listed in this category are supplied strictly for in-vitro laboratory and scientific research. Certain compounds, including Semaglutide and Tirzepatide, are FDA-approved active pharmaceutical ingredients manufactured to pharmacopeial standards — however, Peptalix Labs supplies them strictly for research use, not for clinical or human use.

Frequently Asked Questions — Weight Loss Research Peptides

What is the best weight loss peptide for research?

There is no single "best" compound — the right choice depends on the receptor pathway being studied. Semaglutide targets GLP-1 alone, Tirzepatide adds GIP agonism, and Retatrutide extends to a third receptor (glucagon). Many researchers study multiple compounds for comparative incretin-pathway analysis.

What is the difference between Semaglutide, Tirzepatide, and Retatrutide?

Semaglutide is a selective GLP-1 receptor agonist. Tirzepatide is a dual GLP-1/GIP agonist. Retatrutide is a triple agonist activating GLP-1, GIP, and glucagon receptors. Semaglutide and Tirzepatide are FDA-approved APIs; Retatrutide remains investigational.

Are these peptides FDA-approved?

Semaglutide and Tirzepatide are FDA-approved active pharmaceutical ingredients (marketed under brand names for clinical use). Retatrutide, AOD-9604, and Cagrilintide are not yet FDA-approved and remain research/investigational compounds. All products at Peptalix Labs are supplied strictly for research use.

What purity level do Peptalix Labs weight loss peptides have?

Most products in this category are independently tested at 99%+ purity via a full QC panel by ILS Laboratories, including heavy metals, sterility, and fentanyl screening. Select products are tested by Freedom Diagnostics. Certificates of Analysis are published for every batch.

What is AOD-9604 and how does it differ from GLP-1 agonists?

AOD-9604 is a modified human growth hormone fragment studied for direct lipolytic (fat-metabolising) activity, operating through an entirely different mechanism than incretin-receptor agonists like Semaglutide and Tirzepatide.

Does the full QC panel test for sterility and heavy metals?

Yes, for products tested by ILS Laboratories. The full panel includes HPLC purity testing, heavy metals analysis (arsenic, cadmium, chromium, mercury, lead), sterility testing via PCR, and a fentanyl immunoassay screen.

How are weight loss research peptides stored?

All peptides in this category are supplied as lyophilised powder and should be stored at -20°C prior to reconstitution. Once reconstituted with bacteriostatic water, store at 2-8°C and use within 28 days.

Does Peptalix Labs ship weight loss peptides internationally?

Yes. All weight loss research peptides ship same-day from our USA facility, with international delivery available to Canada, Australia, the United Kingdom, and most of Europe.

What is Cagrilintide and why is it grouped with GLP-1 peptides?

Cagrilintide is a long-acting amylin receptor agonist, often studied in combination with GLP-1 agonists like Semaglutide due to complementary appetite-regulation mechanisms in metabolic research.

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