UV rays damage the DNA of skin cells.
UVA rays age skin cells and can damage their DNA.
These rays are linked to long-term skin damage such as wrinkles, but they are also thought to play a role in some skin cancers.
Most tanning beds give off large amounts of UVA, which has been found to increase skin cancer risk.
What will happen if exposed to UV light?
Health Effects. Exposure to light from transilluminators, UV germicidal lamps and crosslinkers can cause severe eye damage and skin burns from very short exposures. No permanent damage to the eye is expected unless a severe exposure has occurred.
Is UV bad for your skin?
Exposure to ultraviolet (UV) radiation is a risk factor for most skin cancers, according to the American Cancer Society. Natural sunlight and UV lamps used for tanning give off the harmful rays, as do the small lamps used to speed drying in nail salons.
Does UV light darken skin?
Tanning, or the darkening of skin when exposed to sun, is a protective response. Melanin, the dark pigment responsible for darkening skin, is believed to protect skin cells from damage caused by ultraviolet radiation in sunlight by absorbing the radiation.
How does the skin protect against UV light?
Think sunscreen is enough to protect you from skin cancer? UVA radiation causes lesions or DNA damage to melanocytes, which are the skin cells that produce the skin pigment known as melanin. Melanin is a protective pigment in skin, blocking UV radiation from damaging DNA and potentially causing skin cancer.