Acetonitrile formulations for nail polish remover, despite its toxicity. At least two cases have been reported of accidental poisoning of young children by acetonitrile-based nail polish remover, one of which was fatal. Acetone and ethyl acetate are often preferred as safer for domestic use, and acetonitrile has been banned in cosmetic products in the European Economic Area since March 2000. In common with other nitriles, acetonitrile can be metabolised in microsomes, especially in the liver, to produce hydrogen cyanide, as was first shown by Pozzani "et al." in 1959. The first step in this pathway is the oxidation of acetonitrile to
Nail (anatomy) bar. Painting the nails with coloured nail polish (also called nail lacquer and nail varnish) to improve the appearance is a common practice dating back to at least 3000 B.C. With the rise of smartphones, some analysts have noted a trend of the "nelfie" (nail selfie), wherein people share their nail art online. Guinness World Records began tracking record fingernail lengths in 1955, when a Chinese priest was listed as having fingernails long. The current record-holder for men, according to Guinness, is Shridhar Chillal from India who set the record in 1998 with a total of of nails on his