Gua sha can't permanently sculpt your jawline, says dermatologist

Gua sha, a traditional Chinese technique of gliding a smooth-edged tool over the face, is trending online as a natural jawline sculptor. Bengaluru dermatologist Dr Akila R of Manipal Hospital says it boosts lymphatic drainage and can reduce puffiness for a few hours, but cannot change the jaw's underlying structure, which depends on deeper anatomical factors.