A prospective randomized controlled trial of intense pulsed photodynamics for seborrhea

INTERVENTION: Seborrhea group:ALA‐IPL; IPL; CONDITION: Seborrhea PRIMARY OUTCOME: Seborrhea; SECONDARY OUTCOME: six‐item skin oiliness scale ,SOS; INCLUSION CRITERIA: 1) Age 18‐40 years old, no cognitive dysfunction, male or female; 2) The patient had increased seborrhea on the left and right faces (in line with the 4 criteria of the skin oiliness scale) with enlarged pores (a single surface area greater than 0.3mm2), which met Fitzpatrick III‐IV grade; 3) After fully explaining the purpose and content of the clinical trial (including subjects' compliance matters, etc.), voluntarily sign an informed consent form to participate in the clinical trial on the basis of full understanding.