TB-500 vs GHK-Cu: Systemic Healing Peptides Compared

TB-500 (Thymosin Beta-4 fragment) and GHK-Cu both promote healing but through different primary mechanisms. TB-500 is a 43-amino-acid peptide that upregulates actin (a cell-building protein), promotes cell migration to injury sites, reduces systemic inflammation, and supports new blood vessel formation throughout the body regardless of injection site. GHK-Cu is a copper-binding tripeptide that activates genes for collagen synthesis, glycosaminoglycan production, and extracellular matrix remodelling — primarily supporting structural tissue regeneration. TB-500 works from the inside out (cells), while GHK-Cu works from the outside in (matrix) in test subjects. For research purposes only.

Primary mechanism: TB-500 = Actin upregulation + anti-inflammatory | GHK-Cu = ECM regeneration + collagen Action type: TB-500 = Systemic (whole body) | GHK-Cu = Primarily local/structural Anti-inflammatory: TB-500 = Strong | GHK-Cu = Mild Collagen synthesis: TB-500 = Indirect | GHK-Cu = Direct and strong Cell migration: TB-500 = Strong | GHK-Cu = Moderate Dose: TB-500 = 2-5 mg 2x/week (loading) | GHK-Cu = 1-2 mg daily Maintenance: TB-500 = 2 mg 1x/week | GHK-Cu = Continue daily Cycle: TB-500 = 4-8 weeks | GHK-Cu = 8-12 weeks Injection site matters: TB-500 = No (systemic) | GHK-Cu = Somewhat Skin/hair effects: TB-500 = Mild | GHK-Cu = Strong Cost per cycle: TB-500 = Higher (large doses) | GHK-Cu = Moderate

Choose TB-500 when: The research targets systemic inflammation reduction, multiple injury sites need healing simultaneously, cardiac tissue repair is being investigated, or the protocol requires whole-body anti-inflammatory effects regardless of injection location in test subjects. Choose GHK-Cu when: The research focuses on skin regeneration, collagen synthesis, wound healing, or extracellular matrix remodelling. GHK-Cu is superior for structural tissue quality and visible tissue improvement in test subjects. For comprehensive healing protocols, TB-500 and GHK-Cu can be combined — TB-500 for systemic inflammation control and cell migration, GHK-Cu for structural matrix rebuilding. For research purposes only.