Blue Light Therapy Lamp Professional Household Baby Jaundice Acne Treatment Physiotherapy Device Item Type: Therapy Lamp Material: ABS Number of Light Chips: 140pcs Main Function: LED blue light: It is mainly to kill propionibacterium acnes through blue light irradiation, so as to achieve the purpose of getting rid of acne Mechanism of Action: In the metabolic process of acne harmful substances, a substance called porphyrin is produced, which is only able to attract blue light of a specific wavelength and combine with it, eventually leading to the death of harmful substances. Use Time: Can be determined according to the actual situation, 3-5 times a day, 1-5 minutes each time, 2-15 days.