Research-Grade Compounds

The Science of
Longevity
Begins Here

Explore the frontier of anti-aging research peptides — from cellular repair compounds to telomere regulators. All compounds sourced from verified US-domestic suppliers with ≥99% purity.

Gly Ala Asp Pro
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BPC-157◆ Epitalon◆ TB-500◆ GHK-Cu◆ Humanin◆ Thymalin◆ MOTS-c◆ Selank◆ Semax◆ CJC-1295◆ BPC-157◆ Epitalon◆ TB-500◆ GHK-Cu◆ Humanin◆ Thymalin◆ MOTS-c◆ Selank◆ Semax◆ CJC-1295◆
Research Compounds

Core Longevity Peptides

The following compounds represent the most researched peptides in the longevity and anti-aging science field. Each links directly to verified research-grade supply.

Anti-Aging · Repair
BPC-157
Body Protection Compound

One of the most extensively studied peptides in tissue repair research. Derived from a gastric protein, BPC-157 has shown remarkable results in animal studies involving gut healing, tendon repair, and systemic anti-inflammatory activity.

Research & Source →
Longevity · Telomere
Epitalon
Tetrapeptide — Epitalon

A synthetic tetrapeptide (Ala-Glu-Asp-Gly) studied for its interaction with telomerase, the enzyme involved in maintaining telomere length. Research suggests antioxidant and circadian-regulating properties relevant to aging biology.

Research & Source →
Recovery · Healing
TB-500
Thymosin Beta-4 Fragment

A synthetic analog of Thymosin Beta-4, TB-500 is studied for its role in angiogenesis, cell migration, and wound healing. Commonly researched in the context of muscle recovery and cardiovascular tissue health.

Research & Source →
Skin · Collagen
GHK-Cu
Copper Peptide Complex

Glycine-Histidine-Lysine bound to copper (GHK-Cu) is one of the most researched cosmetic peptides. Studies show its influence on collagen synthesis, tissue remodeling, and antioxidant gene expression — making it central to skin aging research.

Research & Source →
Immune · Thymus
Thymalin
Thymus-Derived Peptide

A thymus peptide bioregulator studied for its role in immune system modulation. Research from Russian gerontology institutes suggests thymalin may support immune homeostasis and longevity in animal models.

Research & Source →
Mitochondria · Energy
MOTS-c
Mitochondrial-Derived Peptide

A mitochondrial open reading frame peptide studied for its role in metabolic regulation, insulin sensitivity, and stress resistance. Emerging research positions MOTS-c as a key mediator of mitochondrial longevity signaling.

Research & Source →
Research Protocols

Curated Peptide Protocols

QSC Peptides has developed structured compound protocols for researchers. Browse by research focus:

01
Midas Longevity Protocol

A comprehensive longevity-focused research stack combining peptide bioregulators, mitochondrial support compounds, and telomere-relevant peptides. Designed for researchers studying the intersection of aging biology.

Anti-Aging Telomere Mitochondria Longevity
View Protocol →
02
Venus Protocol

A curated compound stack developed for research into women's health, hormonal balance, and metabolic optimization. Includes peptides studied for their estrogen-adjacent and thymic regulatory roles.

Hormonal Metabolic Recovery
View Protocol →
03
Performance & Hormone Stack

Research compounds including CJC-1295, Ipamorelin, and IGF-1 LR3 commonly used in performance and GH axis research. Useful for studying peptide influence on body composition and recovery signaling.

GH Axis Performance Recovery Body Composition
View Stack →
04
Cognitive & Nootropic Stack

Selank, Semax, and Dihexa are among the most researched nootropic peptides for studying neuroplasticity, BDNF regulation, and cognitive resilience. Full COA documentation on all compounds.

Neuroplasticity BDNF Cognitive Anti-Anxiety
View Stack →

Research-Grade Quality You Can Trust

CELL AGING Oxidative stress DNA damage TELOMERE SHORTENING ↓ Telomerase CELLULAR SENESCENCE SASP signals CHRONIC INFLAMMATION Tissue decline Epitalon → Telomerase activation ← BPC-157 Repair signaling CELLULAR AGING CASCADE — PEPTIDE INTERVENTION POINTS

When sourcing peptides for legitimate research, purity and documentation are non-negotiable. QSC Peptides provides Certificate of Analysis (COA) verification with every single order, backed by US-domestic warehousing and fast USPS/FedEx delivery.

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Purity Verified

≥99% HPLC tested · COA on every order

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USA Domestic Warehouse

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Global Warehouses

EU · UK · Australia · Canada · Asia Warehouse

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Research Manual Included

Full compound documentation · Protocols available

Shop Shop Longevity Peptides at QSC →
Common Questions

Frequently Asked Questions

What are longevity peptides? +
Longevity peptides are short chains of amino acids being studied for their potential to support healthy aging mechanisms. They include compounds like Epitalon (telomerase research), BPC-157 (repair and regeneration), MOTS-c (mitochondrial signaling), and GHK-Cu (skin and collagen biology). These are research-grade compounds intended for in vitro and animal model studies.
Where can I buy research-grade peptides in the USA? +
QSC Peptides (qscpeptide.com) is our recommended supplier for USA researchers. They stock all major longevity peptides from a domestic warehouse, provide ≥99% purity with COA documentation, and offer free shipping via USPS/FedEx. They also ship to the EU, UK, Australia, Canada, and internationally from China.
What is the difference between peptide bioregulators and standard peptides? +
Peptide bioregulators (like Epitalon, Thymalin, and Cortagen) are short di- to tetrapeptides that interact with gene expression regulatory mechanisms. Standard research peptides like BPC-157 or TB-500 are longer chains with more direct tissue-level actions. Both categories are extensively studied in the longevity and anti-aging research field.
Is a Certificate of Analysis (COA) important for research peptides? +
Yes — a COA is essential for legitimate research. It confirms the identity, purity, and concentration of the compound via HPLC or mass spectrometry. QSC Peptides provides a COA with every product. Without COA verification, you cannot have confidence in your research data.
What shipping options does QSC Peptides offer? +
QSC ships via USPS and FedEx from their US domestic warehouse with free standard shipping on all orders. They also operate domestic warehouses in the EU (GLS), Australia, Canada, Singapore, Thailand, Vietnam for domestic delivery. Most US orders arrive within 2-5 business days.
In-Depth Compound Profiles

Research Compound Reference

Each longevity peptide listed below is backed by peer-reviewed preclinical research. All compounds are sold strictly for in vitro and animal model research purposes.

Repair · Anti-Aging
BPC-157
Body Protection Compound 157
Peptide Sequence — 15 Residues
Gly Glu Pro Pro Pro Gly Lys Pro Ala Asp Asp Ala Gly Leu Val 1 7 15 ■ Acidic ■ Basic ■ Nonpolar ■ Small
SequenceGly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
TypePentadecapeptide
Molecular Weight1419.5 Da
Purity (QSC)≥99% HPLC
Storage−20 °C lyophilized
View at QSC Peptides →

Background

BPC-157 is a synthetic pentadecapeptide derived from a sequence found in human gastric juice. It was first described by researchers in Zagreb in the 1990s, who identified it as the biologically active fragment of Body Protection Compound (BPC). Unlike many peptides, BPC-157 exhibits stability in gastric acid and has been studied extensively in rodent models across a wide range of tissue types.

Key Research Areas

The majority of BPC-157 research has focused on its remarkable tissue repair properties. Animal studies have demonstrated accelerated healing of tendon, ligament, muscle, and bone tissue. Separate research programs have examined its gastroprotective and gut-healing properties — consistent with its origin in gastric juice biology. Of note, several studies have investigated its effects on the nitric oxide (NO) system, which may partly explain observed vascular effects.

  • Tendon-to-bone healing acceleration in rat models (Sikiric et al., multiple publications)
  • Gut mucosal protection and repair in colitis models
  • Anti-inflammatory activity via NO pathway modulation
  • Neuroprotective observations in traumatic brain injury models
  • Liver protective effects in drug-induced hepatotoxicity studies

Research Formulations Available

QSC Peptides stocks BPC-157 in lyophilized powder form for reconstitution. Certificate of Analysis (COA) via HPLC is provided with each batch, confirming ≥99% purity. The compound is available in 5 mg quantities, suitable for most preclinical research protocols.

Research Considerations

BPC-157 remains a research compound with no approved human applications. All referenced studies are preclinical. Researchers should consult current literature for applicable dosing ranges used in animal model studies and ensure institutional compliance with applicable regulations.

Longevity · Telomere
Epitalon
Epitalon · Epitalone
Tetrapeptide Structure — Ala-Glu-Asp-Gly
H₂N COOH Ala Alanine CH₃ Glu Glutamic −COOH Asp Aspartic −COOH Gly Glycine H MW: 390.3 Da · Tetrapeptide Bioregulator
SequenceAla-Glu-Asp-Gly
TypeTetrapeptide
Molecular Weight390.3 Da
Purity (QSC)≥99% HPLC
OriginPineal gland extract derivative
View at QSC Peptides →

Background

Epitalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide originally derived from the natural polypeptide Epithalamin, which is produced by the pineal gland. The compound was first synthesized and studied extensively by Professor Vladimir Khavinson at the St. Petersburg Institute of Biogerontology, Russia, beginning in the 1980s. Khavinson's group published a substantial body of research on its effects on aging biomarkers, telomere length, and neuroendocrine regulation.

Key Research Areas

The most significant finding in Epitalon research is its proposed ability to stimulate telomerase activity — the enzyme responsible for rebuilding telomere caps on chromosomes. Telomere length is widely considered a biomarker of cellular aging; shorter telomeres are associated with senescence. Several studies in human somatic cells and animal models have suggested that Epitalon may support telomere elongation, though further independent replication is warranted.

  • Telomerase activation and telomere elongation in human fetal fibroblast cell lines
  • Extended lifespan observations in fruit fly and rodent models
  • Antioxidant activity and reduction in lipid peroxidation markers
  • Neuroendocrine normalization — melatonin secretion regulation
  • Potential antitumor activity reported in mammary cancer mouse models

Research Notes

Epitalon is classified as a peptide bioregulator — a category of short peptides studied for their gene-regulatory properties. Its small size (tetrapeptide) allows for oral stability research unlike many larger peptides, making it of interest in bioavailability studies. All research is preclinical and the compound is not FDA-approved for any human application.

Recovery · Regeneration
TB-500
Thymosin Beta-4 Fragment
TypeSynthetic peptide fragment
ParentThymosin Beta-4 (Tβ4)
Molecular Weight~4963 Da
Purity (QSC)≥99% HPLC
View at QSC Peptides →

Background

TB-500 is a synthetic fragment of Thymosin Beta-4, a naturally occurring 43-amino acid protein found in nearly all human and animal cells. It is particularly concentrated in platelets, wound fluid, and sites of tissue injury. The naturally occurring Tβ4 plays a central role in actin sequestration, cell migration, and wound healing — processes essential to tissue repair at the cellular level.

Key Research Areas

TB-500 research has primarily focused on its regenerative potential in muscle, tendon, ligament, and cardiac tissue. The peptide promotes angiogenesis (new blood vessel formation) and has been studied for its ability to enhance cell migration to injury sites. Multiple equine studies — conducted in the context of horse racing research — provided early data on its tendon and tissue healing applications.

  • Acceleration of wound healing and tissue repair in multiple animal models
  • Promotion of angiogenesis via upregulation of VEGF receptors
  • Reduction of inflammation in injured tissue
  • Cardiac regeneration studies in models of myocardial infarction
  • Hair follicle stem cell activation in alopecia models
Skin · Collagen
GHK-Cu
Glycyl-L-Histidyl-L-Lysine Copper
SequenceGly-His-Lys + Cu²⁺
TypeCopper peptide complex
Molecular Weight340.4 Da (base)
Natural SourceHuman plasma
View at QSC Peptides →

Background

GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a naturally occurring copper complex found in human plasma, saliva, and urine. It was first discovered by Loren Pickart in 1973, who observed that plasma from young humans had significantly greater liver regeneration effects than plasma from older adults — a difference he eventually traced to GHK-Cu. Plasma concentrations of GHK-Cu decline significantly with age, from approximately 200 ng/mL at age 20 to undetectable levels by age 60, making it a fascinating candidate for aging research.

Key Research Areas

GHK-Cu has a broad research profile spanning skin biology, wound healing, and genetic activity. Gene expression studies using microarray analysis found that GHK-Cu modulates the expression of over 4,000 human genes. Among its most-studied applications are collagen synthesis stimulation, antioxidant effects, and anti-inflammatory activity.

  • Collagen I and III synthesis stimulation in fibroblast cultures
  • Antioxidant superoxide dismutase (SOD) upregulation
  • Anti-inflammatory gene expression modulation
  • Wound healing acceleration in multiple animal models
  • Skin barrier repair and glycosaminoglycan production
Side-by-Side Reference

Longevity Peptide Comparison

A research reference comparing primary mechanisms, research depth, and key applications of the major longevity peptides available at QSC Peptides.

4,322 GENES MODULATED
GHK-Cu
Gene expression modulation (Pickart & Margolina, 2018)
100+ STUDIES PRECLINICAL
BPC-157
Preclinical research publications
200→0 NG/ML AGE 20→60
GHK-Cu
Plasma concentration decline with age
Compound Primary Mechanism Research Depth Key Application Areas Purity at QSC Ships USA
BPC-157 Nitric oxide pathway, angiogenesis, growth factor upregulation Extensive (100+ rodent studies) Tissue repair, gut healing, anti-inflammation ≥99% HPLC Yes
Epitalon Telomerase activation, pineal regulation Moderate (primarily Khavinson group) Cellular aging, longevity, neuroendocrine ≥99% HPLC Yes
TB-500 Actin sequestration, VEGF upregulation, cell migration Good (equine + rodent data) Muscle/tendon repair, angiogenesis, cardiac ≥99% HPLC Yes
GHK-Cu Gene expression (4,000+ genes), collagen synthesis, antioxidant Good (Pickart + independent studies) Skin biology, wound healing, collagen ≥99% HPLC Yes
MOTS-c Mitochondrial signaling, AMPK activation, metabolic regulation Emerging (USC-led research) Metabolic health, insulin sensitivity, aging ≥99% HPLC Yes
Thymalin Thymus-derived immune modulation, T-cell regulation Moderate (Russian biogerontology) Immune senescence, longevity protocols ≥99% HPLC Yes
Quality Metrics

Purity & Research Data

All QSC Peptides compounds are independently verified by HPLC. Below are representative purity readings and research publication depth across key longevity compounds.

HPLC Purity — QSC Verified
95% 97% 98% 99% 100% BPC-157 99.4% Epitalon 99.6% TB-500 99.2% GHK-Cu 99.7% MOTS-c 99.1% Thymalin 99.5%
Research Publication Depth (Relative)
BPC-157 Epitalon TB-500 GHK-Cu MOTS-c Thymalin Research publication volume (relative)
Sourcing Guide

How to Source Research-Grade Longevity Peptides

01
Verify Purity Standards
Only source peptides with HPLC-verified purity of ≥98% or higher. Research-grade means every batch is independently tested. QSC Peptides provides ≥99% purity certificates with every order.
02
Demand a COA
A Certificate of Analysis (COA) from a third-party lab is non-negotiable. It should include identity confirmation via mass spectrometry, HPLC purity trace, and batch number. Never order from suppliers who don't publish COAs.
03
Choose Domestic Warehousing
USA-domestic stock avoids customs delays and cold-chain disruption. QSC ships from US, EU, UK, Australian, and Canadian warehouses depending on your location. Select the nearest warehouse for best results.
04
Confirm Research-Only Labeling
Legitimate research peptide suppliers clearly label all products "For Research Use Only — Not for Human Consumption." This is the regulatory standard. QSC Peptides maintains this standard across all products.
Global Fulfillment

QSC Ships to Researchers Worldwide

QSC Peptides operates multiple domestic warehouses to provide fast, reliable delivery of research compounds globally. All orders include free shipping.

🇺🇸
United States
USPS Priority Mail & FedEx
2–5 business days
Domestic warehouse · Free shipping
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European Union
GLS European Network
3–7 business days
EU domestic warehouse · Free shipping
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United Kingdom
Royal Mail & DPD
2–4 business days
UK warehouse · Free shipping
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Australia
Australia Post & StarTrack
3–6 business days
AU domestic · Free shipping
🇨🇦
Canada
Canada Post & Canpar
3–7 business days
CA warehouse · Free shipping
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Rest of World
EMS & DHL International
7–14 business days
SG/TH/VN domestic · Free shipping
Research Library

Longevity Peptide Research Digest

Summaries of key preclinical research on longevity peptides — updated regularly for researchers and practitioners exploring this field.

Conceptual: Telomere Length vs. Age — Natural Decline vs. Epitalon Research Interest
20 35 50 65 80 Age (years) Low Mid High Telomere Length Natural telomere decline Research hypothesis (Epitalon telomerase activation) ← Potential preservation
Telomerase Activation by Epitalon in Human Somatic Cells
Research from Khavinson et al. demonstrated that Epitalon (Ala-Glu-Asp-Gly) stimulates telomerase activity in human fetal fibroblast cultures, with statistically significant telomere elongation observed over multiple cell passages. The study positioned Epitalon as a candidate for further anti-aging investigation.
Accelerated Tendon-to-Bone Healing in Rat Models with BPC-157
A series of studies from the University of Zagreb demonstrated that BPC-157 significantly accelerated healing of severed Achilles tendons in Sprague-Dawley rats. Treated animals showed faster restoration of tensile strength and histological normalization compared to vehicle-treated controls. The proposed mechanism involved upregulation of growth hormone receptors and NO pathway modulation.
GHK-Cu Modulates Over 4,000 Human Genes: Microarray Analysis
A comprehensive microarray analysis by Pickart and Margolina found that the copper peptide GHK-Cu modulates the expression of 4,322 human genes. The affected gene sets included those governing anti-inflammatory responses, antioxidant pathways, collagen synthesis, and tissue remodeling — establishing GHK-Cu as one of the broadest-acting naturally occurring peptides studied to date.
Mitochondrial-Derived MOTS-c as a Regulator of Metabolic Homeostasis
The discovery of MOTS-c as a mitochondrial-derived peptide by Lee et al. at USC represented a significant advance in mitochondrial biology. The peptide was shown to regulate AMPK pathways and insulin sensitivity in mouse models, with older mice showing significant metabolic improvement following MOTS-c administration — placing it firmly in the longevity research conversation.
Thymosin Beta-4 Promotes Cardiac Repair After Myocardial Infarction
Research published in Nature explored Thymosin Beta-4's role in activating dormant epicardial progenitor cells following myocardial infarction in adult mice. TB-500, as a synthetic analog, has been studied in related cardiac repair contexts, with data suggesting potential for reducing scar formation and restoring cardiac function in ischemia models.
Khavinson's Peptide Bioregulator Theory: 40 Years of Russian Anti-Aging Research
Professor Vladimir Khavinson's four-decade research program at the St. Petersburg Institute of Biogerontology produced a substantial body of data on short peptide bioregulators — including Epitalon, Thymalin, Cortagen, and Vilon. His theoretical framework posits that tetrapeptides corresponding to specific organ systems can restore gene expression patterns associated with youth, representing a novel angle on biological aging intervention.
Research Terminology

Longevity Research Glossary

Key terms used in longevity peptide research, from molecular biology basics to clinical research concepts.

Peptide
A short chain of amino acids (typically 2–50 residues) linked by peptide bonds. Distinct from proteins by size. Peptides can function as hormones, signaling molecules, antimicrobial agents, and tissue repair mediators.
Telomere
Repetitive DNA sequences (TTAGGG in humans) capping the ends of chromosomes, protecting them from degradation. Telomeres shorten with each cell division; critically short telomeres trigger cellular senescence. Telomere length is widely used as a biomarker of biological aging.
Telomerase
An enzyme complex that adds telomeric repeats to chromosome ends, counteracting the shortening that occurs with cell division. Active in stem cells and germ cells; largely inactive in most somatic cells. Reactivation of telomerase is a focus of several anti-aging research programs including Epitalon research.
COA (Certificate of Analysis)
A document from an independent or manufacturer's laboratory confirming the identity, purity, and concentration of a compound. For research peptides, a COA should include HPLC chromatogram, mass spectrometry confirmation, and batch number. Essential for research reproducibility and sourcing verification.
HPLC
High-Performance Liquid Chromatography. The gold-standard analytical technique for measuring peptide purity. A sample is passed through a column under high pressure; components separate by molecular affinity. The resulting chromatogram shows purity as a percentage of peak area occupied by the target compound.
Lyophilized
Freeze-dried. Research peptides are sold in lyophilized (powder) form for maximum stability during storage and shipping. Lyophilization removes water via sublimation under vacuum, preserving peptide integrity. Reconstitution with bacteriostatic water is required before use in research.
Peptide Bioregulator
A category of short (di- to tetrapeptide) peptides studied for their ability to interact with gene expression regulatory mechanisms in specific tissues. Associated primarily with the research of Prof. Vladimir Khavinson. Examples include Epitalon (pineal gland), Thymalin (thymus), and Cortagen (brain cortex).
AMPK
AMP-activated protein kinase — a key cellular energy sensor and metabolic regulator. Activated when cellular energy (ATP) is low; triggers pathways that restore energy balance and suppress anabolic processes. AMPK activation is associated with longevity in multiple model organisms. MOTS-c exerts some of its effects via AMPK pathway modulation.
Angiogenesis
The process of forming new blood vessels from existing ones. Essential for wound healing, tissue repair, and growth. TB-500 and BPC-157 have both been studied for their ability to promote angiogenesis, primarily through upregulation of VEGF (Vascular Endothelial Growth Factor) receptors.
Senescence (Cellular)
A state in which a cell permanently stops dividing but does not undergo apoptosis (programmed cell death). Senescent cells accumulate with age and secrete pro-inflammatory signals (the SASP — Senescence-Associated Secretory Phenotype). The accumulation of senescent cells is considered a hallmark of aging.
In Vitro
Research conducted outside a living organism, typically in cell cultures or isolated tissue preparations. In vitro studies are foundational to peptide research but do not directly predict in vivo (whole organism) effects. Most early peptide mechanism work is in vitro.
Bacteriostatic Water
Sterile water for injection containing 0.9% benzyl alcohol as a preservative. Used to reconstitute lyophilized peptides for research purposes. The benzyl alcohol prevents bacterial contamination and extends the usability of the reconstituted solution when stored refrigerated.

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⚠ RESEARCH USE ONLY — All compounds referenced on this website are for in vitro and animal research purposes only. These compounds are not approved by the FDA for human consumption. This website does not provide medical advice. All information is educational. Please consult with a licensed healthcare professional before using any compounds. All products sold by QSC Peptides are clearly labeled "For Research Use Only." LongevityPeptides.com is an independent educational resource and affiliate of QSC Peptides (qscpeptide.com).