Inflammatory disorders

'Super melanin' heals skin injuries from sunburn, chemical burns

Imagine a skin cream that heals damage occurring throughout the day when your skin is exposed to sunlight or environmental toxins. That's the potential of a synthetic, biomimetic melanin developed by scientists at Northwestern ...

Health

How should I add sunscreen to my skincare routine?

Sun exposure is the number one cause of skin cancer—including the most deadly form, melanoma. High levels of sun exposure cause an estimated 7,200 melanomas in Australia each year.

Oncology & Cancer

Skin cancer survivors: How to stay safe in the sunshine

For many people, playing and relaxing in the sun is fun. But for skin cancer survivors, the sun can be a source of fear and anxiety. That's because sun exposure is one of the most significant risk factors for developing skin ...

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Sunburn

A sunburn is a burn to living tissue such as skin produced by overexposure to ultraviolet (UV) radiation, commonly from the sun's rays. Usual mild symptoms in humans and animals are red or reddish skin that is hot to the touch, general fatigue, and mild dizziness. An excess of UV-radiation can be life-threatening in extreme cases. Exposure of the skin to lesser amounts of UV radiation will often produce a suntan.

Excessive UV-radiation is the leading cause of primarily non malignant skin tumors. Sunscreen is widely agreed to prevent sunburn, although a minority of scientists argue that it may not effectively protect against malignant melanoma, which is either caused by a different part of the ultraviolet spectrum or, according to others, not caused by sun exposure at all. Clothing, including hats, is considered the preferred skin protection method. Moderate sun tanning without burning can also prevent subsequent sunburn, as it increases the amount of melanin, a skin photoprotectant pigment that is the skin's natural defense against overexposure. Importantly, sunburn and the increase in melanin production are both triggered by direct DNA damage. When the skin cells' DNA is damaged by UV radiation, type I cell-death is triggered and the skin is replaced. Malignant melanoma may occur as a result of indirect DNA damage if the damage is not properly repaired. Proper repair occurs in the majority of DNA damage, and as a result not every exposure to UV results in cancer. The only cure for sunburn is slow healing, although some skin creams can help with the symptoms.

This text uses material from Wikipedia, licensed under CC BY-SA