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Trusted by researchers for purity, consistency, and reliability. All peptides independently tested with >98% purity by HPLC. Fast domestic shipping on every order.

For research use only. Not for human or veterinary use.

Top Research Peptides

Featured Products

A curated selection of our most popular research-grade peptides — all independently verified for >98% purity by HPLC and shipped from the USA.

SemaglutideIn Stock
GLP-1 Agonists

Semaglutide

A GLP-1 receptor agonist analog used in metabolic research. Studies glucose-dependent insulin secretion and body weight regulation pathways.

$245.00Was $285.00
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IGF1-LR3In Stock
Growth Hormone Peptides

IGF1-LR3

Long R3 insulin-like growth factor-1 with extended half-life. Used in cellular growth and muscle tissue proliferation research.

$258.00Was $298.00
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TesamorelinIn Stock
Growth Hormone Peptides

Tesamorelin

A synthetic analog of growth hormone-releasing hormone (GHRH). Used in GH secretion and metabolic regulation research.

$245.00Was $285.00
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TirzepatideIn Stock
GLP-1 Agonists

Tirzepatide

A dual GIP and GLP-1 receptor agonist. Used in type 2 diabetes and obesity mechanism research via incretin-based metabolic pathways.

$148.00Was $188.00
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Ipamorelin AcetateIn Stock
Growth Hormone Peptides

Ipamorelin Acetate

A selective growth hormone secretagogue and ghrelin receptor agonist. Research focuses on GH pulsatile release and appetite regulation.

$285.00Was $325.00
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Thymosin Alpha 1In Stock
Immune Support

Thymosin Alpha 1

A naturally occurring thymic peptide used in immune system modulation research. Studies T-cell maturation, NK cell activation, and immune response pathways.

$260.00Was $300.00
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SelankIn Stock
Cognitive & Nootropic

Selank

A heptapeptide analog of tuftsin used in anxiolytic and nootropic research. Studies GABA receptor modulation and cognitive enhancement mechanisms.

$245.00Was $285.00
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Fragment 176-191In Stock
Fat Loss Research

Fragment 176-191

A 16-amino acid fragment of human growth hormone used in lipolysis research. Studies fat metabolism regulation and adipocyte receptor interactions.

$108.00Was $148.00
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Thymosin Beta 4In Stock
Healing & Recovery

Thymosin Beta 4

A ubiquitous 43-amino acid peptide used in tissue repair and angiogenesis research. Studies actin sequestration, wound healing, and cardiac regeneration.

$305.00Was $345.00
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SemaxIn Stock
Cognitive & Nootropic

Semax

A synthetic ACTH analog used in neuroprotection and cognitive function research. Studies BDNF regulation and neuroplasticity mechanisms.

$145.00Was $185.00
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CJC-1295In Stock
Growth Hormone Peptides

CJC-1295

A 30-amino acid GHRH analog with DAC modification. Used in long-acting GH secretion and IGF-1 elevation pathway research.

$285.00Was $325.00
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BPC-157In Stock
Healing & Recovery

BPC-157

A 15-amino acid partial sequence of body protection compound. Research focuses on angiogenesis, tendon repair, and gut mucosal protection.

$258.00Was $298.00
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Why Researchers Choose Us

The Peak Peptides Difference

Peak Peptides Solutions USA Sales is committed to quality, transparency, and fast delivery — every order, every time.

Research-Grade Purity

Every peptide is independently tested and verified at >98% purity by HPLC analysis. Certificates of Analysis available for all products.

100% USA Sourced

Manufactured and quality-controlled in certified USA facilities. Domestic sourcing ensures consistent supply chain integrity and faster delivery.

Fast & Discreet Shipping

Orders processed and shipped within 1-2 business days. Discreet packaging with tracking on every order. Express options available.

Dedicated Research Support

Our team is available to assist with product selection, storage guidance, and research protocol questions. Contact us anytime.