From athletic recovery to cellular longevity, discover the peptides researchers worldwide are investigating for human optimization and scientific advancement.
Educational research summaries for scientific discussion and laboratory research only.
Select your area of scientific interest to explore relevant peptides
Investigating accelerated healing, joint recovery, and tissue regeneration in research models
Exploring telomere extension, senescent cell clearance, and age-reversal mechanisms
Researching fat oxidation, glucose regulation, and body composition pathways
Studying natural GH secretion, muscle protein synthesis, and performance enhancement
Investigating neuroprotection, neuroplasticity, and cognitive function optimization
Exploring thymic peptides, immune modulation, and systemic defense research
Researching endurance, strength, muscle recovery, and exercise adaptation
Studying collagen synthesis, elastin production, and dermal regeneration mechanisms
Investigating peptides with antimicrobial properties in research settings
Exploring cellular energy production, oxidative stress, and mitochondrial biogenesis
Researching GI barrier function, inflammatory pathways, and gut-systemic connections
Cutting-edge compounds in early-stage research and novel mechanism investigation
Most-studied peptides with extensive published research
The 'body protection compound' extensively researched for gut-to-tendon healing mechanisms
BPC-157 is a synthetic 15-amino-acid peptide originally derived from a larger gastric protective protein fraction identified in stomach mucosa. It has attracted sustained scientific interest because it appears to interact with multiple biological pathways involved in tissue integrity, vascular signaling, and stress responses in preclinical research models.
View research summaryFragment of thymosin beta-4 investigated for accelerated tissue repair and cell migration
TB-500 is a synthetic 7-amino-acid fragment (Ac-LKKTETQ) from thymosin beta-4's actin-binding site that promotes tissue repair through G-actin sequestration, ROCK1 downregulation, cell migration, progenitor cell mobilization, angiogenesis, and anti-inflammatory effects. Phase 2 human trials show 61% improvement in wound reepithelialization by day 7.
View research summaryCopper-peptide complex studied for its role in wound healing and collagen remodeling
GHK-Cu is a naturally occurring copper-binding tripeptide that promotes wound healing through keratinocyte migration, increased VEGF/bFGF expression, decorin and collagen production, elastin and glycosaminoglycan synthesis, while remodeling tissue via MMP-2/MMP-9 activation and TIMP-1/TIMP-2 modulation to organize collagen and elastin fibers.
View research summaryTetrapeptide investigated for telomerase activation and potential lifespan extension
Epithalon is a synthetic tetrapeptide that activates telomerase primarily by upregulating hTERT gene expression, extending telomeres by approximately 33.3% in human somatic cells and increasing proliferative potential beyond the Hayflick limit (from 34 to 44+ passages in fetal fibroblasts). Developed by Vladimir Khavinson from pineal gland extract research.
View research summarySenolytic peptide designed to selectively target aging cells in research models
FOXO4-DRI is a D-retro-inverso peptide that selectively induces apoptosis in senescent cells by disrupting FOXO4-p53 nuclear complexes, causing p53 nuclear exclusion, mitochondrial translocation, BAX activation, cytochrome C release, and caspase-3/7-mediated intrinsic apoptosis while sparing healthy cells.
View research summaryMitochondrial-derived 'exercise mimetic' studied for metabolic and longevity benefits
MOTS-c is a 16-amino-acid mitochondrial-derived peptide (MDP) encoded within the 12S rRNA gene of mitochondrial DNA. Discovered in 2015, it functions as an 'exercise mimetic' through AMPK activation, NAD+ elevation, and sirtuin activation, with levels declining approximately 21% in elderly populations and higher levels observed in centenarians.
View research summaryNeuroprotective peptide discovered in Alzheimer's research, studied for cellular survival
Humanin is a 24-amino acid mitochondrial-derived peptide originally discovered in surviving neurons of Alzheimer's disease patients. It exerts neuroprotective effects primarily by inhibiting apoptosis via BAX binding, mitigating oxidative stress, preserving mitochondrial function, and counteracting neurotoxic insults like amyloid-beta in multiple disease models.
View research summaryGLP-1 analog extensively studied for metabolic regulation and weight management research
Semaglutide is a GLP-1 receptor agonist peptide analog with 94% homology to human GLP-1. It is FDA-approved for type 2 diabetes and chronic weight management under various brand names. Research-grade semaglutide is studied separately from approved pharmaceutical products.
View research summaryDual GIP/GLP-1 receptor agonist investigated for superior metabolic outcomes
Tirzepatide is an FDA-approved dual GIP/GLP-1 receptor agonist with imbalanced potency favoring GIPR (equal to native GIP) over GLP-1R (~5-fold weaker than native GLP-1). SURPASS trials showed HbA1c reductions of 1.8-2.4% and weight loss of 7-12 kg; SURMOUNT trials achieved 15-22.5% body weight reduction over 72 weeks.
View research summaryCommon investigation themes in peptide research (for educational and laboratory purposes only)
Investigating peptides for tissue repair, inflammation modulation, and accelerated healing
Explore researchResearching cellular aging, telomere extension, and senescence interventions
Explore researchInvestigating metabolic pathways, GH secretion, and muscle protein synthesis
Explore researchResearching neuroprotection, neuroplasticity, and cognitive enhancement mechanisms
Explore researchStudying collagen synthesis, elastin production, and skin regeneration pathways
Explore researchQuality standards that researchers rely on
Research Orders Fulfilled
Average Purity
COAs Published
Shipping Available
Peptides are short chains of 2-50 amino acids linked by peptide bonds, functioning as bioactive signaling molecules that bind receptors, inhibit enzymes, or modulate pathways. Unlike full proteins, their smaller size enables better tissue penetration and high specificity for therapeutic targets with reduced side effects.
Peptide stability refers to resistance against chemical degradation (oxidation of Met/Cys/Trp, deamidation of Asn/Gln, hydrolysis at Asp-Pro bonds) and physical degradation (aggregation, precipitation). Key factors: temperature, pH extremes, peroxides from excipients, and metal contamination. Lyophilization enhances stability over solution forms.
Optimal peptide storage: lyophilized form at -20°C or below under inert gas (argon/nitrogen), protected from light and moisture. Reconstituted solutions should be aliquoted to avoid freeze-thaw cycles and stored at -20°C short-term or -80°C long-term. Avoid repeated temperature fluctuations.
Peptide half-life (typically minutes to hours) is limited by renal clearance (<5-6 kDa filtered by glomeruli) and proteolytic degradation (DPP-IV, aminopeptidases). Extension strategies include: D-amino acid substitution, albumin binding (fatty acid conjugation), PEGylation, N/C-terminus modification, and cyclization.
RP-HPLC-MS is the gold standard for peptide analysis: HPLC separates by hydrophobicity (C18 column, water/acetonitrile gradient with TFA or formic acid), while MS confirms identity via m/z molecular weight. Validation criteria: purity Rs≥2.0 resolution, R²≥0.999 linearity, ≤2% RSD precision, 98-102% recovery accuracy.
A COA documents purity (>95% ideal via HPLC with chromatogram), identity (MS molecular weight match), net peptide content (70-90% excluding water/salts/TFA), and endotoxin levels (<1 EU/mg for research). Red flags: missing chromatograms, no MS data, in-house only testing, expired dates. Third-party verification preferred.
Browse our complete catalog of research peptides with ≥99% purity, third-party tested, COA included with every order.
