UV lamps belong to hot cathode fluorescent lamps, and their tubes emit UVA long wavelength ultraviolet radiation. UVA can make the skin turn black because of its strong penetration ability, which can reach deep into the dermis, destroy collagen, and act on melanin in the epidermis, causing melanin deposition and skin darkening. However, as a nail art lamp, it is not a daily long-term contact, so it will not cause darkening like exposure to the sun. LED lights are like ordinary lighting, so they do not harm the eyes and skin of the human body. However, some customers may have black hands after lighting up, which is because their hands are very dry or the manicurist does not pay attention to the operation time, resulting in prolonged exposure time and temporary deposition of melanin. Simply apply moisturizing hand cream to relieve this.

Control the duration of each lighting session well. In principle, 30 seconds is sufficient, and generally no more than 60 seconds is sufficient. Secondly, some methods can be used to protect fingers, such as only shining on the fingertips without touching the skin, or allowing a small amount of ultraviolet radiation to hit the skin. Finally, choose the appropriate nail art lamp and use the appropriate intensity.