Supervision. Although many people tan to look healthy, actually the darkening of the skin that occurs after exposure to uv (ultraviolet) rays is a sign that the skin has been damaged and therefore the tan is not a sign of good health. What type of radiation do artificial tanning devices emit? The two types of radiation emitted by these devices are uv-a rays and uv-b rays: uv-a rays: they have a wavelength of 315-400 nanometers and penetrate the deepest layers of the skin. Uv-b rays: they have a wavelength of 280-315 nanometers and penetrate the superficial layers of the skin.
They are the main responsible for sunburn. Uv-b rays stimulate melanosomes to produce melanin, which is absorbed by surrounding keratinocytes. Artificial tanning devices are designed to provide a quick tan by emitting high-intensity uv rays. In europe, most of them emit uv radiation at levels equivalent to the tropical midday sun , but others can emit uv rays e commerce photo editing service with uv-a intensities that exceed any natural source. Indoor tanning devices and skin cancer uv-emitting tanning beds are classified as carcinogenic to humans by the international agency for research on cancer. Uv rays are the cause of all three types of skin cancer . Although the risk of developing cancer varies depending on skin type, most of them occur in fair-skinned people.
The 3 main types of skin cancer are listed below, from least to most severe: inesem business school course in dermocosmetics (university degree + 8 ects credits) more information basal cell carcinoma: it is the most common of the 3. It originates in the lower layer of the epidermis and does not usually spread to other parts of the body. Squamous cell carcinoma: it originates in the cells of the outermost layer of the epidermis and can spread to other areas of the body if it is not detected early. Depending on their characteristics, they can be treated by surgery, radiotherapy and