RETA Peptide Research & Analysis Hub
RETA Research is a comprehensive peptide research portal covering regenerative, endocrine, therapeutic, and anti-aging peptide science. In-depth mechanism analysis, peer-reviewed citations, and cross-peptide comparisons.
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Managed, Tested & Shipped Domestically
Featured Research
In-depth research profiles with mechanisms of action, key findings, and peer-reviewed citations.
Body Protection Compound-157
Also known as: BPC-157, Pentadecapeptide, PL 14736, PL-10, Bepecin
BPC-157 is a synthetic pentadecapeptide derived from a protective protein found in human gastric juice. Its mechanisms of action are multifaceted and have been studied extensively in over 100 animal studies. A central aspect of its activity involves upregulation of growth factor expression, including VEGF (vascular endothelial growth factor), EGF (epidermal growth factor), and their receptors. Thi...
Quick Facts
Sequence: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
MW: 1419.53 g/mol
CAS: 137525-51-0
Store lyophilized powder at -20C, protected from light. Reconstituted solution should be refrigerated at 2-8C and used w...
Thymosin Beta-4 (TB-500 Fragment)
Also known as: TB-500, TB500, Thymosin Beta 4, Tbeta4
Thymosin beta-4 (Tbeta4) is a 43-amino-acid peptide that is the most abundant member of the beta-thymosin family. Despite its name (a historical artifact from its original isolation from thymus tissue), Tbeta4 is expressed in virtually all nucleated cells and is one of the most abundant intracellular peptides, with concentrations reaching 0.4 mM in some cell types. TB-500 is a synthetic version co...
Quick Facts
Sequence: Full TB4: Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe...
MW: 4921.0 g/mol (full Tbeta4)
CAS: 77591-33-4
Store lyophilized powder at -20C. Reconstituted solution should be refrigerated at 2-8C and used within 21 days. Tbeta4 ...
Copper Peptide GHK-Cu
Also known as: GHK-Cu, Glycyl-L-Histidyl-L-Lysine:Copper(II), Copper Tripeptide-1, Linus Pauling Peptide
GHK-Cu is a naturally occurring copper-binding tripeptide first identified in human plasma by Loren Pickart in 1973. It is found in blood, saliva, and urine, with plasma levels declining from about 200 ng/mL at age 20 to 80 ng/mL by age 60. The copper ion is essential for its biological activity, as it enables the peptide to serve as a bioavailable copper delivery system. GHK-Cu exerts its biolog...
Quick Facts
Sequence: Gly-His-Lys (with Cu2+ ion)
MW: 403.93 g/mol (copper complex)
CAS: 49557-75-7
Store lyophilized powder at -20C, protected from light. The copper complex is stable but can oxidize; minimize exposure ...
MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA Type-c)
Also known as: MOTS-c, Mitochondrial-Derived Peptide
MOTS-c is a 16-amino-acid peptide encoded by the mitochondrial genome within the 12S rRNA gene. Discovered by Changhan David Lee and Pinchas Cohen at the University of Southern California in 2015, it was one of the first mitochondrial-derived peptides (MDPs) identified with significant metabolic regulatory activity. Its discovery challenged the longstanding view that the mitochondrial genome encod...
Quick Facts
Sequence: Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-...
MW: 2174.68 g/mol
CAS: 1627580-64-6
Store lyophilized powder at -20C. Reconstituted solution should be refrigerated at 2-8C and used within 14 days. Protect...
Nicotinamide Adenine Dinucleotide
Also known as: NAD+, NAD, Coenzyme I
NAD+ is a fundamental coenzyme in cellular energy metabolism, serving as the primary electron carrier in mitochondrial oxidative phosphorylation and as an essential substrate for sirtuins (SIRT1-7), PARPs, and CD38/CD157 enzymes. NAD+ levels decline significantly with age, impairing sirtuin-mediated gene regulation, mitochondrial function, and DNA repair capacity. The 500mg product contains the s...
Quick Facts
Sequence: Non-peptide dinucleotide
MW: 663.43 g/mol
CAS: 53-84-9
Store lyophilized powder at -20C, protected from light and moisture. NAD+ is hygroscopic. Reconstituted solutions should...
Latest Research Articles
Deep-dive articles from the System Peptides Research Network.
Essential Peptides for Anti-Aging and Longevity Research
The most studied peptides in aging research — Epitalon, NAD+, MOTS-c, GHK-Cu, and SS-31. Mechanisms, evidence levels, an...
Read Article Trending ResearchPeptide Research Trends to Watch in 2026
The five biggest trends shaping peptide research in 2026 — from GLP-1 agonist evolution to mitochondrial peptides, AI-dr...
Read Article Category RoundupMitochondrial-Targeted Peptides: The Next Research Frontier
MOTS-c, SS-31, and the emerging class of mitochondria-targeted peptides. How they work, what they target, and why mitoch...
Read Article Educational GuideUnderstanding Preclinical vs Clinical Peptide Research
The pipeline from preclinical discovery to clinical trials — what each phase means, why most peptides are preclinical-on...
Read Article Category RoundupGrowth Hormone Secretagogues: A Complete Research Guide
Everything researchers need to know about GH secretagogues — Ipamorelin, CJC-1295, GHRP-6, Tesamorelin, and how they dif...
Read Article Trending ResearchAI and Peptide Discovery: How Machine Learning Is Changing Research
How artificial intelligence is accelerating peptide discovery — from AlphaFold structure prediction to generative sequen...
Read Article Research ScienceThe SIRT1-NAD+ Axis: A Key Target in Peptide Longevity Research
How the SIRT1-NAD+ signaling axis connects cellular energy, aging, and peptide interventions like NAD+ supplementation a...
Read Article Educational GuideReading PubMed: A Researcher's Guide to Peptide Literature
How to search, evaluate, and interpret PubMed articles on research peptides. Search strategies, study quality assessment...
Read ArticleResearch Applications
Key research categories and applications studied in the scientific literature.
Recovery & Healing
Cross-referencing tissue repair research across BPC-157, TB-500, and GHK-Cu to identify synergistic healing pathways and optimal research protocols for regenerative applications.
Cognitive Enhancement
Aggregating neuroprotective peptide data from Selank, Semax, and Pinealon research — comparing anxiolytic, nootropic, and neuroprotective mechanisms across peptide classes.
Anti-Aging & Longevity
Comprehensive longevity research spanning telomerase activation (Epitalon), mitochondrial optimization (MOTS-c, SS-31), and NAD+ pathway modulation for systemic anti-aging science.
Metabolic Research
Comparative analysis of metabolic peptides including AOD-9604, 5-Amino-1MQ, and Tesamorelin — AMPK activation, fat metabolism, and body composition research across multiple pathways.
100% USA-Based Peptide Research
Managed, tested, and shipped entirely within the United States
Why US-Sourced Research Peptides Matter
Research Vials is 100% USA-managed, USA-tested, and USA-shipped. Every step of the quality chain stays domestic — no overseas middlemen, no imported product, no compromises.
US-Accredited Lab Testing
Every batch is verified by accredited, independent US laboratories with no financial ties to any manufacturer. Our Certificates of Analysis come from domestic labs held to US regulatory standards — not self-reported results from overseas facilities.
98-99%+ Purity Standard
Our HPLC-verified purity consistently reaches 98-99%+, confirmed by mass spectrometry. Imported peptides commonly arrive at 85-95% purity. That difference matters — impurities confound dose-response data, trigger off-target effects, and can invalidate entire studies.
Domestic Cold-Chain Shipping
Peptides are temperature-sensitive. International shipments can sit in customs, endure uncontrolled warehouse temperatures, and arrive degraded. Our products ship exclusively within the US via temperature-controlled logistics — from our facility to your lab, never crossing a border.
Best Value for Premium Grade
Highest-grade US-tested peptides at competitive prices. When you factor in the cost of failed experiments from impure imports, our pricing delivers the best value per verified microgram. No hidden customs fees, no import delays, no gamble on quality.
Transparent COA Verification
Every COA is batch-specific, issued by a US-accredited independent lab, and available before you buy. We publish HPLC chromatograms, mass spectrometry data, and endotoxin results. No self-certified paperwork from unaccredited overseas labs.
Frequently Asked Questions
Common questions about reta research research, purity standards, and sourcing.
What is RETA Research?
RETA Research is a comprehensive peptide science portal focused on Regenerative, Endocrine, Therapeutic, and Anti-aging peptide research. We aggregate peer-reviewed data across multiple peptide classes to provide researchers with cross-domain insights and mechanism comparisons.
What peptide categories does RETA cover?
RETA covers tissue-repair peptides (BPC-157, TB-500), neuroprotective peptides (Selank, Semax, Pinealon), metabolic peptides (MOTS-c, AOD-9604, 5-Amino-1MQ), growth hormone secretagogues (CJC-1295, Ipamorelin, Tesamorelin), and longevity peptides (Epitalon, NAD+, GHK-Cu).
How is RETA different from single-peptide research sites?
While single-peptide sites provide deep dives into individual compounds, RETA Research provides cross-peptide analysis, pathway comparisons, and synergy data that help researchers understand how different peptides interact and complement each other.
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