Methanol is a cosmetic component of restricted substances, the maximum allowable concentration of 2000mg/kg. Methanol as a solvent in perfumes and hairspray series products. Methanol (aka wood alcohol or wood alcohol) mainly through Airless pump bottles the respiratory and gastrointestinal absorption. Can be partially absorbed by the skin. Methanol absorbed into the body, can be quickly distributed in the body's tissues, in which cerebrospinal fluid, blood, bile and urine highest content, aqueous humor and vitreous of the content is higher, bone marrow and fat to a minimum. Significant pet jar role in the accumulation of methanol, methanol through the respiratory tract and kidneys excreted unoxidized slow discharge section through the gastrointestinal tract. Methanol in the body is mainly oxidized alcohol dehydrogenase, ethanol oxidation rate is 1/7, the final metabolite of formaldehyde and formic acid. Formaldehyde quickly metabolized into formic acid, metabolic acidosis and eye damage caused by acute poisoning, mainly related to the acid content. In vivo inhibition of the oxidation of methanol alcohol in some systems, inhibition of aerobic decomposition of sugar, resulting in the small cosmetic bag accumulation of lactic acid and other organic acids, causing acidosis. Methanol major role in the central nervous system, has obvious anesthesia, can cause cerebral edema; optic nerve and retina has a special selective action, causing optic atrophy, leading to blindness.
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