Substance Abuse and Mental Health Services Administration (US)
Melanocytes on these cells produce and distribute melanin (a pigment that determines our natural hair color) which is then transferred to the keratinocytes that make up the cells in the hair shaft

Examples include: Wound repair models that require fibroblast migration, extracellular matrix deposition, and remodeling Tendon/ligament repair models focused on cell survival, growth and restoration of tissue organization[1] Research in fibrosis and remodeling where thymosin beta-4 related pathways are of interest[2] Studies associated with angiogenesis (e.g., when vascular support is a limiting factor in tissue regeneration) [5] Since synergy is an outcome claim that must be demonstrated experimentally, it is hypothesized here: if BPC-157 and TB-500 affect different critical points of repair (e.g., gene expression versus cytoskeleton mobilization), combined administration in preclinical designs could produce additive or multiplicative improvements in migration rate, wound closure, tissue organization, or histological markers of remodeling, depending on the model and evaluation criteria

Rescue planning stays separate and minimal, used only when an acute histamine-type episode is clearly present