What is prostaglandin D2 (PGD2)?
PGD2 is a lipid compound found in higher concentrations in bald scalps and believed to inhibit hair follicle growth and regeneration.
It works by blocking the signaling pathways necessary for transitioning follicles into the active growth phase.
While red light therapy doesn’t directly suppress PGD2, it may help offset its inhibitory effects by enhancing mitochondrial function and supporting pro-growth signaling in follicle cells.
Related terms
Apoptosis
Mechanisms of Action
Apoptosis is the programmed death of cells, a natural biological process essential for tissue maintenance and health.
Cytokines
Mechanisms of Action
Cytokines are small proteins involved in cell signaling that regulate immune responses, inflammation, and tissue repair throughout the body.
Keratinocytes
Mechanisms of Action
Keratinocytes are cells in the epidermis responsible for producing keratin.
Photobiomodulation (PBMT)
Mechanisms of Action
Photobiomodulation (PBMT) is a therapeutic technique that uses specific light wavelengths to stimulate biological processes at the cellular level.