Mar 8

There are different nonpathologic skin colors and pathologic skin colors. Nonpathologic means healthy and normal in human body systems and pathologic pertains to an abnormal or threat in ones health. Erythema or redness of the skin is normal in the absence of pre-existing special health condition, brown and dark. Pathologic skin colors indicate that there is something wrong about the health of an individual like the presence of bilirubin in the skin that gives it jaundice (jaund – yellow) skin color may indicate that there is a liver disease (hepatitis), Cyanosis (cyan – blue) appear related to decreased oxygen supply in the body cells and tissues, may be the person stopped breathing or have a difficulty of breathing. Pallor or paleness of the skin may occur in conditions such as shock and anemia.

Brown and dark colors of the skin are one of the nonpathologic skin colors as mentioned above. Now what are the effects of the best suntan lotion, sunscreen, and sunblocks? Although basking in the warmth of the sun may feel good, it is not a healthy practice. There are two forms of ultraviolet radiation that affect the health of our cutaneous (skin). Mainly sun radiates ultraviolet A (UVA) which has longer wave length and make up nearly 95% of the ultraviolet radiation. UVA are not absorbed by the ozone layer thus it penetrates the furthest into the skin where they are absorbed by melanocytes and thus are involved in sun tanning. Ultraviolet B rays are shorter wave length and partially absorbed by the ozone layer and do not penetrate the skin as UVA rays.

best suntan lotion or simply Sun-tanning lotions (sunless tanners), topically applied substance, contain a color additive (dihydroxyacetone) that produces a tanned appearance by interacting with proteins in the skin. Sunscreens are topically applied preparations that contain various chemical agents such as benzophenone that absorb UVB rays but let most of UVA rays pass through. Sunblocks are also topically applied preparations that contain substances such as zinc oxide that reflect and scatter both UVB and UVA rays
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