Can peptides be stacked to improve hair growth and thickness?

GHK-Cu stimulates hair follicle growth and enlarges hair follicle size, while TB-500 promotes angiogenesis to improve scalp blood flow. Some users add Thymosin Beta-4 for additional follicle support. Studies in <a href='https://pubmed.ncbi.nlm.nih.gov/30574788/' target='_blank' rel='noopener'>International Journal of Molecular Sciences</a> show GHK-Cu increases hair growth by activating follicle stem cells and extending the anagen phase, with enhanced results when vascular support is optimized.