Glow 70mg

Why scientists study it

• GHK-Cu, a three amino acid peptide that holds copper, has been tested for decades in cells and animal wounds for collagen building, reshaping the scaffold between cells, and skin gene activity.
• BPC-157, a lab-made chain of 15 amino acids, has been tested widely in skin, muscle and tendon injuries for growing blood vessels, drawing them to an injury, and protecting tissue.
• TB-500, a lab-made copy of the actin-binding piece of thymosin beta-4, is tested for actin control, cell movement and wound closing signals that help vessels grow and repair cells reach a wound.

Three studies to know

Pickart & Margolina, 2018 · International Journal of Molecular Sciences

This review looked at how GHK-Cu repairs and protects tissue, using data on gene activity across the whole genome. It presents the peptide as acting broadly on pathways for repair and for antioxidant defense. Read the paper

Sikiric et al., 2018 · Current Pharmaceutical Design

Sikiric and colleagues reviewed how BPC-157 is thought to protect cells and the lining of blood vessels. That includes its tested role in drawing blood vessels toward an injury. Read the paper

Goldstein, Hannappel & Kleinman, 2005 · Trends in Molecular Medicine

Goldstein and colleagues wrote an early, basic review. It treats thymosin beta-4 as a protein that holds actin in reserve. It describes the tested roles of this protein in cell movement, blood vessel growth and repair of injured tissue. Read the paper

Safety and legal status

• As of 2026, none of the three peptides is approved by the FDA, the EMA or the MHRA for treating people.
• The World Anti-Doping Agency Prohibited List names two of the three peptides. BPC-157 is under class S0 (non-approved substances). Thymosin beta-4 and its derivatives, TB-500 included, are under class S2 (peptide hormones, growth factors and related substances). The list does not name GHK-Cu.
• Supplied for laboratory research only. It is not for human use.