علوم - ماجستير
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Item Determination of Mercury Concentration in Some Skin-lightening Creams Sold in Cosmetics Shops in Khartoum State(AL-Neelain University, 2015-10) Safa Mohammed Hashim Abd allaItem Determination of Mercury Concentration in Some Skin-lightening Creams Sold in Cosmetics Shops in Khartoum State(Al Neelain University, 2015) Safa Mohammed Hashim Abd allaWomen in many countries use cosmetic products that lighten their skin, in pur suit of “fair - skinned beauty. Some of the products may be harmless, but others contain potentially hazardous ingredients such as inorganic mercury compounds. These products are often applied to large areas of the skin, left on the skin for hours at a time, and used repeatedly for week s, months or years. In this study, fifty samples of cosmetic products were analyzed for total mercury by Direct Mercury Analyzer and Atomic Absorption Spectrometry. The concentration of mercury in the creams ranged from 0.017 - 93.70 μg/g. forty percent ( 40% ) of the samples contain mercury with high concentration above standard of World Health Organization (WHO) 1 μg/g . The use of such creams may lead to health hazards and significant risks to users. Fifty eight percent (58%) of creams contain mercury lev els lower than t he recommended WHO limit of 1 μg/g . Two percent (2%) no mercury was detected. No warning information was noted on the packaging . pH of the fifty samples ranged from 3 to 11 . 34% of the sample studied had pH which is acidic (3 - 5 ), 58% is sl ightly acidic (5 - 7 ) and 8% is basic (7 - 11). Mercury absorbed through the skin from lightening products can damage the skin itself, the kidneys, and the nervous system. Therefore, it is recommended that all skin - lightening creams should be checked for mer cury levels before marketing and educates consumers about the hazards they pose.