Semi-permanent varnishes are especially prized for their longevity, lasting 2-3 weeks without chipping, as opposed to days for traditional manicures. However, the application of this type of varnish, usually done in professional nail beauty institutions or “nail bars”, requires the use of UV (at least 48 watts) combined with light-emitting diode (LED) lamps. Each of the four should be dried and fixed. layer of varnish.
“Unfortunately, these lamps emit UV type A rays (UVA) that are known to penetrate deep into the skin and accelerate aging, especially the development of skin cancer.” said the French National Academy of Medicine.
convergence research
The beneficial role of ‘nail’ UV lamps in inducing these skin cancers was mentioned as early as 2009. [1]The Academy also notes the latest research published in Clinics in Dermatology in 2022. The study lists several cancer cases associated with the use of this type of varnish over the past few years. [2]and recent experimental studies [3]It consists of applying a UV lamp that emits UVA, is used to dry nail polish, and is used on three types of skin cells: mouse embryonic fibroblasts, fibroblasts, and human keratinocytes. I was. The latter study showed that irradiation of three types of cells with a UV ‘nail’ lamp induced mutations typical of UVA. We provide concrete evidence on the carcinogenic risk of using these lamps in nail care.
However, the Academy recognizes the need to conduct large-scale epidemiological studies to more accurately assess the risk of skin cancer caused by frequent, long-term exposure to this type of radiation. I’m here.
According to the Academy, the risk appears to be related to three cumulative factors. Speed of exposure (20 on average). Frequent exposure (average 5-6 times per year). Use of lamps over several years. “The primary risk is the cumulative effects of UVA exposure.and individual factors such as clear skin and immunosuppression may increase the risk.
information campaign
Therefore, the Academy recommends that users first apply a sunscreen with UVA protection for about 20 minutes before slipping their hands under the UV/LED lamp. Additionally, it advises public agencies to research the number of UV/LED devices sold each year.To allow us to estimate the evolution of the marketand to accompany each lamp purchased with a written message of warnings and recommendations. In addition, the Academy said,Information campaigns for the general public and concerned professionals. It highlights the risks associated with continuous year-round application of semi-permanent varnishes, especially among people with distinct phototypes.”
Ultimately, it should be noted that cancer is not the only undesirable effect associated with the application of semi-permanent varnishes. were identified: allergic skin reactions (66 cases, 70.5%), mechanical nail damage (23 cases, 26.1%), and 3 UV-induced cutaneous squamous cell carcinomas (3.4%).