Research Grade · HPLC Verified · USA Manufactured

Precision
Peptides.

Every compound verified by HPLC and Mass Spectrometry. ≥99% purity guaranteed. Supplied exclusively to qualified researchers worldwide.

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16+
Research Compounds
≥99%
Average Purity
HPLC/MS
Verification Method
48h
Average Dispatch

Research Catalog

Our Compounds

Best Seller
Growth Hormone Peptides
4.9 (47)

Sermorelin Acetate

99.5%
Verified Purity

A 29-amino acid analogue of endogenous Growth Hormone-Releasing Hormone (GHRH). Sermorelin acts directly on pituitary somatotroph cells to stimulate the pulsatile release of growth hormone. Widely studied for its role in GH secretion dynamics and somatotropic axis research.

CAS 86645-56-7
$89.99
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Growth Hormone Peptides
4.8 (63)

Ipamorelin

99.4%
Verified Purity

A selective, third-generation growth hormone secretagogue (GHS) and ghrelin receptor agonist. Ipamorelin demonstrates high GH selectivity with minimal effect on cortisol, prolactin, or ACTH levels — making it a precise research tool for isolated GH axis studies.

CAS 171648-80-7
$79.99
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Growth Hormone Peptides
4.9 (89)

CJC-1295 DAC

99.2%
Verified Purity

A long-acting synthetic analogue of GHRH incorporating Drug Affinity Complex (DAC) technology. The DAC modification enables covalent binding to serum albumin, dramatically extending biological half-life to 6–8 days. Critical research tool for studying sustained GH axis stimulation.

CAS 822790-22-1
$99.99
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New
Growth Hormone Peptides
4.7 (34)

GHRP-2

99.3%
Verified Purity

A synthetic hexapeptide and second-generation growth hormone secretagogue. GHRP-2 acts on both ghrelin receptors in the hypothalamus and pituitary, producing robust GH pulses. Frequently co-administered with GHRH analogues in research to amplify GH release.

CAS 158861-67-7
$54.99
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Growth Hormone Peptides
4.8 (52)

GHRP-6

99.5%
Verified Purity

One of the original synthetic growth hormone secretagogues, GHRP-6 is a hexapeptide that potently stimulates GH release via ghrelin receptor activation. Distinguished by its notable effect on appetite and gastric motility, offering a unique research profile compared to newer GHSs.

CAS 87616-84-0
$59.99
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Popular
Growth Hormone Peptides
4.7 (28)

HGH Fragment 176-191

99.1%
Verified Purity

A stabilized analogue of the C-terminal region (residues 176-191) of human growth hormone. Research indicates this fragment retains the lipolytic activity of full-length HGH without binding to GH receptors or influencing IGF-1 levels — making it an ideal isolated research model.

CAS 221231-10-3
$69.99
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Best Seller
Healing & Recovery Peptides
5 (142)

BPC-157

99.1%
Verified Purity

Body Protection Compound-157 is a synthetic pentadecapeptide derived from a protective gastric protein. Extensively studied for its effects on angiogenesis, tendon and ligament healing, gut barrier integrity, and neuroprotection. One of the most researched regenerative peptides available.

CAS 137525-51-0
$74.99
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Healing & Recovery Peptides
4.9 (118)

TB-500 (Thymosin β4)

99.3%
Verified Purity

A synthetic analogue of the naturally occurring Thymosin Beta-4 protein. TB-500 is a 43-amino acid peptide that promotes actin upregulation, cell migration, and tissue remodeling. Extensively researched in models of wound healing, cardiac repair, and neural regeneration.

CAS 77591-33-4
$119.99
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New
Healing & Recovery Peptides
4.8 (41)

GHK-Cu (Copper Peptide)

99.0%
Verified Purity

A naturally occurring copper complex of the tripeptide Gly-His-Lys. GHK-Cu exhibits pleiotropic biological activity in research including collagen synthesis stimulation, antioxidant effects, anti-inflammatory modulation, and nerve growth factor (NGF) production — a key compound in tissue biology research.

CAS 89030-95-5
$49.99
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Popular
Longevity & Anti-Aging Peptides
4.7 (29)

Epithalon (Epitalon)

99.2%
Verified Purity

A synthetic tetrapeptide (Ala-Glu-Asp-Gly) and analogue of the natural pineal gland peptide Epithalamin. Research has focused on its effects on telomerase activation, telomere elongation, circadian rhythm regulation, and neuroendocrine axis modulation. A subject of significant longevity research.

CAS 307297-39-8
$64.99
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Metabolic Research Peptides
4.8 (37)

AOD-9604

99.0%
Verified Purity

An analogue of amino acids 177-191 of the C-terminus of human growth hormone, with an additional Tyr residue at the N-terminus. AOD-9604 has been studied for its selective lipolytic and anti-lipogenic properties without measurable effects on IGF-1 or blood glucose — distinguishing it as a metabolic research compound.

CAS 221231-10-3
$79.99
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Premium
Metabolic Research Peptides
4.9 (54)

Tesamorelin

99.1%
Verified Purity

A synthetic analogue of GHRH with a trans-3-hexenoic acid group conjugated to the N-terminus, improving stability against DPP-IV degradation. Tesamorelin has been extensively studied for visceral adiposity reduction and GH axis stimulation with a favorable safety profile compared to direct GH administration.

CAS 218949-48-5
$129.99
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Melanocortin Peptides
4.7 (31)

PT-141 (Bremelanotide)

99.0%
Verified Purity

A cyclic heptapeptide derived from Melanotan II and a melanocortin receptor agonist. PT-141 acts centrally via MC3R and MC4R pathways rather than through the vascular system, making it a unique research tool for studying central mechanisms of arousal, motivation, and melanocortin signalling.

CAS 189691-06-3
$89.99
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Melanocortin Peptides
4.8 (44)

Melanotan II

99.2%
Verified Purity

A cyclic lactam analogue of alpha-melanocyte-stimulating hormone (α-MSH). Melanotan II is a non-selective melanocortin receptor agonist studied for its effects on pigmentation, energy homeostasis, and reproductive biology. A foundational compound in melanocortin receptor pharmacology research.

CAS 121062-08-6
$69.99
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Popular
Nootropic & Neuropeptides
4.8 (38)

Selank

99.0%
Verified Purity

A synthetic heptapeptide analogue of the endogenous immunomodulatory peptide tuftsin. Selank exhibits anxiolytic properties in animal models via serotonergic and dopaminergic pathways, with additional research demonstrating memory enhancement and BDNF upregulation without sedation or dependence.

CAS 129954-34-3
$59.99
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Nootropic & Neuropeptides
4.9 (45)

Semax

99.1%
Verified Purity

A synthetic heptapeptide derived from the N-terminal fragment of ACTH(4-10) with a Pro-Gly-Pro C-terminal extension conferring resistance to enzymatic degradation. Research has documented BDNF and NGF upregulation, improved cognitive performance metrics, and neuroprotective effects in ischemia models.

CAS 80714-61-0
$64.99
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All products are intended for research purposes only · Not for human consumption

Quality Assurance

Purity is not a
marketing claim.

Every batch of Mr. Peptide compounds undergoes independent third-party testing before it reaches our catalog. We do not list a product until it meets our purity threshold.

View Full QA Process →
01
High-Performance Liquid Chromatography
HPLC analysis determines exact compound purity by separating and quantifying each component.
02
Mass Spectrometry
MS confirms molecular identity by measuring the mass-to-charge ratio of ionized molecules.
03
Amino Acid Analysis
AAA verifies sequence composition for peptides where applicable.

Researcher Feedback

Trusted by the Community

The most consistent purity I have encountered from any domestic supplier. COA documentation is thorough and batch-accurate.

Dr. Sarah K.
Research Biochemist, Stanford

CJC-1295 DAC and Ipamorelin sourced here. Verified independently. Results align precisely with published literature.

Prof. Michael T.
Molecular Biology Lab, MIT

Exceptional documentation standards. The HPLC data matches our in-house verification. Reliable for longitudinal studies.

Dr. Emily R.
Pharmaceutical Research, Johns Hopkins

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16 verified compounds. COA on every batch.

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