
Immunotherapy Could Repaint Gray Hair, Early Research Finds
New research suggests immunotherapy drugs that activate the immune system might reactivate pigment-producing stem cells in hair follicles to restore color and possibly reverse graying, inspired by reports that some cancer patients treated with immunotherapy experienced hair repigmentation; current evidence comes from cells and animal models, with no approved gray-hair reversal yet. More human studies are needed—if gray hair is a medical concern, consult a dermatologist.













