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Top Selling Peptides February 2026: Product Comparison
The following table compares the leading peptide categories by primary research application, typical concentration ranges used in published studies, and key mechanistic distinctions that drive laboratory selection criteria. GLP-1/GIP Agonists (Tirzepatide, Sem
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- The following table compares the leading peptide categories by primary research application, typical concentration ranges used in published studies, and key mechanistic distinctions that drive laboratory selection criteria.
- GLP-1/GIP Agonists (Tirzepatide, Semaglutide, Retatrutide)
- Metabolic disease modeling, insulin sensitivity studies, hepatic steatosis research
- 0.1–10 μM in cell culture; 0.025–2.5 mg/kg in animal models
- GLP-1 receptor activation → cAMP elevation → insulin secretion; GIP co-activation enhances effect
- 28 days at 2–8°C after reconstitution with bacteriostatic water
- Benchmark compounds for incretin pathway research. Reproducibility and published dose-response curves make them essential metabolic research tools
- Tissue Repair Peptides (BPC-157, TB-500, GHK-Cu)
- Wound healing models, angiogenesis assays, fibroblast proliferation studies
- BPC-157: 1–10 μg/mL; TB-500: 100–500 ng/mL; GHK-Cu: 1–50 μM
- BPC-157: VEGF receptor interaction + NO synthase upregulation; TB-500: G-actin binding; GHK-Cu: TGF-β modulation + collagen gene activation
- BPC-157: 14 days; TB-500: 21 days; GHK-Cu: 7 days (copper oxidation limits stability)
- Most cited peptides in tissue repair literature. BPC-157 leads wound healing studies; TB-500 dominates actin-related migration research
- Growth Hormone Secretagogues (Ipamorelin, CJC-1295, MK-677)
- Anabolic signaling research, IGF-1 expression studies, age-related GH decline models
- Ipamorelin: 100–300 μg/kg; CJC-1295: 30–60 μg/kg; MK-677: 10–25 mg/kg oral
- GHSR1a agonism (ipamorelin/MK-677) or GHRH receptor agonism (CJC-1295) → pituitary GH release
- Ipamorelin: 14 days; CJC-1295: 21 days; MK-677: stable as powder indefinitely
- Ipamorelin offers cleanest selectivity profile; CJC-1295 NO DAC preferred for acute studies; combination protocols produce 3–4× GH elevation vs monotherapy
- Cognitive Enhancement Peptides (Cerebrolysin, Dihexa, Semax, Selank)
- Synaptic plasticity studies, neurogenesis assays, cognitive decline models, stress response research
- Dihexa: 1 pM–1 nM; Cerebrolysin: 0.1–1 mL/kg; Semax/Selank: 50–500 μg/kg
- Dihexa: HGF receptor activation; Cerebrolysin: BDNF-like activity; Semax: melanocortin receptor modulation
- Dihexa: 30 days; Cerebrolysin: 14 days; Semax/Selank: 21 days
- Dihexa shows highest potency in synaptogenesis assays. Picomolar activity unmatched by other cognitive peptides; cerebrolysin valuable for neurotrophic factor research