Clinical Observation of Exosomes in Patients After Q-switched Laser Surgery
the goal of this half-face controlled study is to evaluate the effect of exosome-containing liquid dressings on the recovery of patients after Nd:YAG laser 532 treatment.
- EligibilityCriteria: Inclusion Criteria:  It meets the diagnostic criteria of seborrheic keratosis or freckle； pepole are able to follow the treatment rules of the study and were followed up for 8 weeks； informed consent  Exclusion Criteria:  History of keloids ; Pregnancy or lactation; Any cosmetics containing growth factor-related ingredients used within 6 months prior to treatment Patients with incomplete observation data and incomplete course of treatment were excluded - HealthyVolunteers: Accepts Healthy Volunteers - Gender: All - MinimumAge: 18 Years - MaximumAge: 60 Years - StdAgeList: Adult