Your Order
No items added yet.
Research-Grade Peptides — Synthesized for Precision

The science
of sequence.

Peptide Research Inc. supplies pharmaceutical-grade peptides for research institutions, labs, and clinical investigators worldwide. Every compound is third-party verified.

99.2%
Avg. Purity
14
Compounds in Catalog
HPLC
Mass-Spec Verified
48h
Avg. Dispatch
Product Catalog
Select compounds
GH Secretagogue
Tesamorelin
$63
GHRH Analog · 10 mg
Researched for its potential to reduce excess visceral fat, support lean body composition, and improve IGF-1 levels — with a particularly strong clinical evidence base among GHRH analogs.
≥99.0%
Purity
10 mg
Vial Size
Lyophilized
Form
GH Secretagogue
Ipamorelin
$34
Pentapeptide GH Releaser · 5 mg
Studied for its potential to stimulate natural growth hormone release, supporting fat metabolism, lean muscle preservation, recovery, and improved sleep quality — without significantly affecting cortisol or appetite.
≥98.5%
Purity
5 mg
Vial Size
Lyophilized
Form
GH Secretagogue
Sermorelin
$48
GHRH(1–29) Analog · 10 mg
Researched for its potential to restore youthful GH secretion patterns, supporting anti-aging benefits including improved body composition, bone density, energy levels, and skin quality.
≥98.5%
Purity
10 mg
Vial Size
Lyophilized
Form
Metabolic · GLP-1/GIP/Glucagon
Retatrutide
$89
Triple Agonist · 10 mg
Among the most potent compounds currently in research for weight reduction, with studies exploring substantial decreases in body fat, improved insulin sensitivity, and favorable cardiovascular metabolic markers.
≥98.5%
Purity
10 mg
Vial Size
Lyophilized
Form
Metabolic · GLP-1/GIP/Glucagon
Retatrutide
$144
Triple Agonist · 20 mg
High-volume format of the leading triple incretin agonist. Ideal for extended research protocols exploring sustained metabolic benefits including fat loss, blood sugar regulation, and cardiovascular risk reduction.
≥98.5%
Purity
20 mg
Vial Size
Lyophilized
Form
Metabolic · Mitochondrial
NAD+
$115
Nicotinamide Adenine Dinucleotide · 1000 mg
Researched as a foundational longevity compound, with studies exploring its potential to boost cellular energy, support DNA repair, activate anti-aging sirtuin pathways, and improve cognitive and physical performance.
≥99.0%
Purity
1000 mg
Vial Size
Lyophilized
Form
Metabolic · Mitochondrial Peptide
MOTS-c
$94
Mitochondrial ORF · 20 mg
Investigated for its potential to enhance insulin sensitivity, support healthy metabolism, improve exercise endurance, and activate cellular pathways associated with longevity and metabolic resilience.
≥98.5%
Purity
20 mg
Vial Size
Lyophilized
Form
Cognitive · Anxiolytic
Selank
$41
Heptapeptide · Tuftsin Analog · 10 mg
Researched for its potential to reduce anxiety, sharpen focus, and support mood stability — with studies suggesting it may upregulate BDNF, a key protein in neuroplasticity and cognitive performance.
≥98.5%
Purity
10 mg
Vial Size
Lyophilized
Form
Cognitive / Neuroprotective
Semax
$50
ACTH(4–7)PGP Fragment · 10 mg
Studied for its potential to enhance memory, focus, and mental clarity, while also offering neuroprotective benefits — including BDNF stimulation and potential support for stroke recovery and neurological resilience.
≥99.0%
Purity
10 mg
Vial Size
Lyophilized
Form
Reproductive · GnRH Modulator
Kisspeptin-10
$50
KP-10 · RF-amide Peptide · 10 mg
Researched for its potential to support hormonal balance via the HPG axis, with studies exploring benefits in testosterone optimization, fertility support, and metabolic regulation.
≥98.5%
Purity
10 mg
Vial Size
Lyophilized
Form
Melanocortin · MC4R Agonist
PT-141
$41
Bremelanotide · 10 mg
Studied for its potential to enhance sexual desire and function through direct CNS action — offering a non-hormonal mechanism that has shown promise for both male and female libido support in research settings.
≥98.5%
Purity
10 mg
Vial Size
Lyophilized
Form
Melanocortin · MC1R Agonist
Melanotan 2
$33
MT-II · Cyclic Heptapeptide · 10 mg
Researched for its potential to promote melanin-based skin tanning, reduce appetite, and support libido — with studies noting multi-receptor activity across pigmentation, metabolic, and sexual health pathways.
≥98.5%
Purity
10 mg
Vial Size
Lyophilized
Form
Quad-Peptide Blend · Regenerative
KLOW
$102
BPC-157 · TB-500 · GHK-Cu · KPV
A synergistic four-peptide blend researched for accelerated tissue repair, reduced inflammation, collagen synthesis support, and gut healing — making it one of the most comprehensive recovery and regenerative compounds available.
≥98.5%
Purity
Blend
Type
Lyophilized
Form
Reconstitution Support
Bacteriostatic Water
$14
0.9% Benzyl Alcohol · Sterile
The essential reconstitution solution for all lyophilized peptide compounds. USP-grade with 0.9% benzyl alcohol to maintain sterility across multiple draws, ensuring safe and precise preparation for research use.
USP Grade
Standard
30 mL
Vial Size
Sterile
Form
Quality Standards
Built for serious research.
HPLC & Mass-Spec Verified
Every batch is independently tested via reverse-phase HPLC and ESI mass spectrometry. COAs are available on request for each lot number.
Lyophilized for Stability
Compounds are lyophilized under controlled conditions and nitrogen-sealed to ensure maximum shelf life and reconstitution integrity.
Place an Order
Text us to order

Ready to order? Add compounds to your cart, then send the order directly to our number via text. We'll confirm availability and provide payment instructions promptly.

(918) 800-3465
SMS Orders Only · No Calls