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Cosmetics ingredients come from a variety of sources but, unlike the ingredients of food, are often not considered by most consumers. Cosmetics often use vibrant colors that are derived from some unexpected sources, ranging from crushed insects to rust. Many new techniques have allowed manufacturers to synthesize such colors; the use of animal products has been reduced, due in large part to the efforts of Beauty Without Cruelty, PETA and other groups, though not eliminated. Cosmetics in a variety of forms date back to early civilizations, with the need to improve ones personal appearance being an important factor in attracting a mate. Over the years the ingredients have changed dramatically as we discovered how to manufacture our own scents and cosmetic formulas. The realization of the dangers of many common ingredients also greatly affected the growing industry. Ancient Egyptian aristocracy made use of minerals to provide colour and definition to their facial features. During the era of the Greek Empire it was common to use face paints, while the Romans indulged in baths containing oil-based perfume. ==Common ingredients== Castor oil and its derivatives are found in many cosmetics as it is "non-comedogenic" (does not exacerbate or contribute to acne).〔International Caster Oil Association. "(ICOA Technical Bulletins - Effect on Skin )". Accessed 27 January 2007.〕 Cerebrosides (cells from the nervous systems of cattle or swine) were once used in some high-end skin-care products to increase moisture retention and to create a smooth skin surface,〔Adams, Cecil. 31 March 2000. "(Does lipstick contain fish scales? )". Accessed 24 January 2007.〕 however the BSE controversy has put an end to this practice. In many countries colors in cosmetics are listed as numbers from the Colour Index International. The scheme covers colors used in food, personal care products, cosmetics, household products and fabric dyeing. So, for example you will not normally see tartrazine listed in lipstick ingredients, but it may be there listed as C.I. 19140. Erythrosine will be listed as C.I. 45430, and so on. In US and Canada colors are listed as FD & C colors. Tartrazine (E012) is FD & C Yellow 5 and erythrosine (E127) is FD & C Red 3. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ingredients of cosmetics」の詳細全文を読む スポンサード リンク
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