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Personal care products and facial cosmetics are commonly used by millions of consumers on a daily basis. Direct application of cosmetics on human skin makes it vulnerable to a wide variety of ingredients. Despite the protecting role of skin against exogenous contaminants, some of the ingredients in cosmetic products are able to penetrate the skin and to produce systemic exposure. Consumers’ knowledge of the potential risks of the frequent application of cosmetic products should be improved. While regulations exist in most of the high-income countries, in low income countries there is a lack of similar standards. In most countries for which these legal regulations have been identified, restrictions on the permissible level of heavy metals are strict. There is a need for enforcement of existing rules, and rigorous assessment of the effectiveness of these regulations. The occurrence of metals in cosmetic products is of concern for three principal reasons: (i) the use of cosmetic products could represent a possible source of population-wide exposure daily, and often long-term exposure to metals in cosmetic products (ii) metals can accumulate in the body over time, and (iii) a number of them are known to exhibit different chronic health effects, such as cancer, contact dermatitis, developmental, neurological and reproductive disorders, brittle hair and hair loss. Some metals are potent endocrine disruptors and respiratory toxins. Moreover, some metals, such as Cd, As, Pb, Hg and Sb, are exceptionally toxic with a wide variety of chronic health effects, whereas Cr, Ni and Co are well known skin sensitizers. Since the issue of heavy metals as deliberate cosmetic ingredients has been addressed, attention is turned to the presence of these substances as

Heavy Metals: The Notorious Daredevils of Daily Personal Care Products- Mini Review