1) Individuals with photosensitivity.
2) Individuals with a history of tanning or those who are about to be exposed to intense sunlight should proceed with caution during treatment.
3) Individuals who have used functional cosmetics (such as anti-spot or whitening products) within the past two months.
4) Individuals with severe heart disease, diabetes, hypertension, epilepsy, etc., as well as women with pregnancy.
5) Individuals with herpes infections or extensive skin damage.
6) Patients with pigmentation spots similar to their skin tone or those with overly high expectations.