Understand the source comparison
TB-4, BPC-157, and GHK-Cu: Research Peptide Comparison
TB-4 (Thymosin Beta-4) Actin sequestration and regulation of polymerization ~2 hours 10–100 ng/mL Cell migration assays, wound closure models, angiogenesis studies where cytoskeletal dynamics are the variable of interest Does not directly modulate growth facto
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- TB-4 (Thymosin Beta-4)
- Actin sequestration and regulation of polymerization
- ~2 hours
- 10–100 ng/mL
- Cell migration assays, wound closure models, angiogenesis studies where cytoskeletal dynamics are the variable of interest
- Does not directly modulate growth factor signaling; effects are downstream of actin-dependent processes
- BPC-157
- VEGF receptor activation, nitric oxide modulation, FAK-paxillin pathway engagement
- ~4 hours (estimated)
- 1–10 μg/mL
- Systemic tissue protection models, gastrointestinal injury, tendon healing where multiple signaling pathways need activation
- Mechanism is less well-characterized than TB-4; fewer peer-reviewed studies in non-rodent models
- GHK-Cu (Copper Peptide)
- Matrix metalloproteinase modulation, collagen gene expression, antioxidant enzyme upregulation
- ~1 hour
- 1–10 μM
- Collagen remodeling studies, oxidative stress models, dermal fibroblast experiments
- Requires copper ion presence; GHK alone is inactive; copper toxicity is a variable in high-dose studies