What does Broad Spectrum mean on a sunscreen label?
The sun emits two types of harmful rays: ultraviolet A (UVA) and ultraviolet B (UVB). UVA rays are the dominant tanning rays and are a major cause of skin aging and even skin cancer. UVB rays are predominantly the cause of sunburn and skin cancers, but can also contribute to the development of fine lines, dark spots and wrinkles. UVA rays penetrate through glass windows, UVB rays do not.
The skin around the eyes is the thinnest skin on the body (approximatley 0.5 mm thick.) It also happens to be a common site for non-melanoma, sun induced skin cancers, like basal cell carcinomas. Although the concave areas of the corners of the eyes may seem protected from direct sun exposure, light that reflects off of the brow and other orbital bones, ultimately hits this area which may explain the propensity for skin cancer formation at this site.
There is no doubt that the sun's ultraviolet (UV) rays are damaging to the skin. UV light is a major risk factor for cancer development, sunburn, and premature aging. Scientific evidence clearly supports the use of sunscreen as a safe and effective way to protect the skin from the damaging effects of the sun's UV radiation.
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SUNSCREEN
Scientific study shows that compared to OTC (over-the-counter) ingredients like antioxidants, hyaluronic acid, and the "skin lightening" hydroquinone, sunscreen is the most effective anti-aging preventative in skincare products.
