In recent years, laser cosmetic treatments have gained popularity due to their low invasiveness and high efficacy. They are highly effective for freckles, Nevus of Ota, sunspots, and various other pigmentation issues, making them a preferred treatment option. However, some irresponsible beauty institutions claim laser treatments can be done weekly. Research in Hong Kong has confirmed that frequent, long-term laser cosmetic procedures may carry hidden carcinogenic risks.
The latest issue of the internationally authoritative laser medicine journal Laser Surgery and Therapy published an article by dermatology researchers from the University of Hong Kong. It states, "The safety of long-term, frequent laser skin whitening treatments remains entirely unknown. Furthermore, animal experiments show that mice subjected to twice-weekly laser treatments for six months exhibited a significant increase in two cancer-related gene markers."
The researchers recommend that after 4 to 6 treatment sessions, when dark spots have faded, topical creams can be used to maintain the whitening effect.It is reported that in the 1970s, sunlamps were used for skin beautification. At the time, it was believed only UVB rays caused skin cancer. Only after over a decade of sunlamp exposure did it become known that excessive UVA exposure could also lead to skin cancer.
Therefore, if seeking laser treatments for skin whitening or spot removal, it is essential to first choose a reputable medical institution and secondly, strictly adhere to the treatment regimen and frequency prescribed by the doctor. Avoid blindly undergoing frequent, long-term laser treatments.