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首页 > 期刊问答网 > 期刊问答 > 有关化妆品的论文范文英语

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功能化妆品概要 1功能化妆品的界定 在过去的10多年里,作为化妆品和制药工业革新,以及消费者对化妆品态度转变的结果,化妆品和药品的界线因为交叉而更加模糊不清,见Fig1-1, 由于这种交叉,化妆品和类似药物功效的新类别产品已经出现。比如,尽管美国食品药物管理局 (FDA)没有将功能化妆品(Cosmeceuticals)定义为独立类别,但是该术语已经被派生出来,并且被化妆品制造厂商者,迫不及待地用于描述化妆品和药品组合的一类产品。 每天都有越来越多的术语,用来描述我们正在称为功能化妆品这类日用品。这些包括: 美容增补剂;活性化妆品;效能化妆品;生物活性化妆品;植物化妆品;功效化妆品 皮肤治疗剂;皮肤药物;化妆品药物;疗效性化妆品。 当然,这些术语不都是一样的,在有些情况下,使用者正试图对一些产品类别进行正确地区分;在另一些情况下,使用者可能会简单地"将新酒装入旧瓶"。 美容增补剂基本上是天然营养保健类产品,通过口服产生美容效果,它们通常以胶囊形式使用,但有时以汤剂或甚至酊剂形式使用。 活性化妆品包括"活性"成分,可能不产生许多令人满意的健康益处,然而使用类似效能化妆品或功效化妆品的术语意味着:它们比一般化妆品表现出一些较有用的功效。 比如:皮肤治疗剂和皮肤药物只能简单地归为功能化妆品中的一小类,而化妆品药物被美国食品药物管理局定义为:化妆品和药物相组合的产品,这类产品包括含氟牙膏,抗头皮屑香波,也必须符合人体健康,化妆品卫生和安全法规。由于世界上现有的化妆品卫生和安全法规,和全球文化存在着不同的差异,造成对功能化妆品的许多不同解释;并且不同的国家正在使用上述多种短语和术语,来表达功能化妆品。 2 功能化妆品历史 尽管功能化妆品这个术语,最初由美国皮肤学家阿尔伯特克利格曼医学博士,在20世纪70年代制造出来,但埃及人是有史以来,最早认识到化妆品能有保健的作用。考古学家已经发掘出一些古代化妆品罐,在其化妆品罐上所写的象形文字是说:"对视力有益"和"止血"。公元前1600年书写的医用莎草纸,经常涉及到许多功能化妆品。特别受人喜爱的是使用蜂蜜和牛奶的制剂,据说蜂蜜和牛奶有助于治疗皮肤疾病。而其他由乳香、植物油和石蜡按等比例制造的产品,声称能消除面部皱纹。 对于许多中世纪的阿拉伯医生和他们的欧洲同行来说,化妆品、香精和草药之间没有什么区别。他们所做的研究和试制工作,同时也覆盖了这些学科。化妆品和洗涤工业从医药领域中分离出来,是19世纪当现代制药工业开始发展,当第一个管制药物销售的政府法令实施以来,所出现的现象。 在近来的50多年里,有点讽刺性的是,医生和公众过分关注化妆品,引起的过敏反应。化妆品作为有效帮助治愈的作用被忽视,直到它在20世纪70年代末和80年代初,才被重视。 克利格曼通过开发能改善紫外损伤皮肤外表和抗皮肤皱纹的制剂,重新点燃人们对化妆品的兴趣。在此,他使用维甲酸作为活性成分。维甲酸已被证实:具有消除细小皱纹、减少衰老角质症,和促使胶原形成的能力。 克利格曼认为:新的化妆品技术"使得在皮肤护理品中,加入数量不受限制的活性物质成为可能,这些活性物质来自自然资源-来自植物、海洋、地球以及宇宙,包括那些由化学家合成的令人心动的物质名单。比如:维生素和抗氧化剂、抗炎、影响情绪的香味、胎盘、羊水血清和众多的激素,选择的范围十分广泛。" 3 功能化妆品类型 (1)按通常使用来划分,功能化妆品被分为下列各部分: 皮肤护理:包括防晒和其他皮肤护理品; 头发护理:包括洗发香波、护发剂和保护头皮健康的护发品; 身体护理:包括除臭剂和广泛范围的个人护理品; 化妆护理:包括护甲、护眼和彩妆美容产品。 大多数功能化妆品绝多数是皮肤护理品,特别强调防晒品类;其次第二大类是护发品。 (2)按性别化使用来划分,功能化妆品被分为: 在男性中,潜在功能化妆品使用的关键领域是: 头发再生、抗衰老、抗头皮屑、抗汗、抗皮炎、抗牙齿腐蚀、抗脚癣以及作为收敛剂; 在女性中,功能化妆品最多数用于: 抗皱纹、丰乳、苗条(抗脂肪团)、脱毛、口腔卫生、皮肤变棕色、皮肤美白、细胞再生复原、抗自由基、抗静脉曲张。 在这个世界人口老龄化的当今,人们心里将青春与美丽联系在一起,对于女性,不断使用抗衰老面霜和皮肤美白产品,将构成不断增长的化妆品消费大市场。最近几十年,最流行和最有争议的功能化妆品,有些含有果酸:α-羟基酸(AHA)和β-羟基酸(BHA),它们都是非常流行的"抗衰老物质"。 红血丝是另一个美容的疑难问题,在这个领域中,生物化妆品和植物化妆品正愈加流行。许多植物药材,特别是葡萄叶提取产品,已经被成功地开始应用,减缓红血丝的局部面霜,也正日益进入市场。(今后继续连载) -------------------------------------------------------------------------------- 功能美白成分解析 1、减少黑色素生成,概念跟“预防胜于治疗”相类似:利用防晒露,使皮肤因缺少黑色素生成的刺激而变白。通常这类美白产品配方里都添加有防晒因子。 2、加速已出现色素沉着的角质层细胞的新陈代谢:α羟基酸及A醇可促进皮肤的新陈代谢。它们可帮助消除已出现色素沉着的细胞,使肌肤外表更明亮,还可使不断更新的基层细胞加快其生长分裂速度。这样,黑色素细胞进入邻近细胞中的数量就会较少,肌肤就会显著变白。 3、减少新色素的生物合成:关于此类成分的作用过程,目前市面上出售产品的内含成分大多通过抑制酪氨酸酵素而起作用。通常此类衍生物不能兼备安全性和功效性。以对苯二酚为例,该活性成分因据称有毒而渐遭弃用。 于是,近年来,新一代功能性美白产品成分成为许多业内人士关注的焦点和开发重点——熊果素:其结构是对苯二酚的葡萄糖甙,通过抑制酪氨酸酵素而起作用;其刺激性及敏感性比苯二酚小很多。使用浓度介乎1%~10%之间,最好高于5%。易溶于水,需添加稳定剂以避免在最终配方中变色。 曲酸:其效用是在观察日本清酒酿造工人的手变白时发现的。它能有效抑制酪氨酸酵素,可溶于水,使用浓度介乎1%~3%之间,无毒,用后刺激性极小,在亚洲食品工业中被用作抗氧化剂。但在美白产品中应用,配方中存在稳定性问题,会令加入曲酸的产品变成黄褐色。基于这一原因,含有曲酸的美容化妆品中均添加抗氧化剂。 棕榈酸曲酸:由曲酸衍生而来的脂溶性成分,相对于防晒露及其配方中可能添加的防腐剂而言,其好处在于不影响它们的活性。尽管推测它能起抑制酪氨酸酵素的作用,但确切的作用过程仍未被业界人士彻底搞清楚。而通过人体试验显示其性质稳定,无刺激性。 维生素C衍生物:维生素C可有效抑制酪氨酸酵素,但不具相应比例的美白效果,因此业内人士推断是其抗氧化作用令黑色素减少进而分解,从而起到了美白作用。由于其性质倾向不稳定,故其配方中需添加其他成分保持其稳定性,但可能会因此而降低其功效。值得一提的是,维生素C磷酸镁盐是维生素C相对稳定的衍生物,可溶于水。作为皮肤美白成分使用时,浓度介乎5%~10%之间。具有令肌肤明亮及抗氧化作用,并能刺激胶原蛋白的合成,也常用于抗衰老保养品中。 壬二酸衍生物:该酸由引起花斑癣的皮屑芽胞菌酵母自然生成,通过该分子的作用会使皮肤出现淡斑。它是氧化酵素的有效抑制剂,因此也能抑制酪氨酸酵素。对光不敏感,与皮肤相容性好,但难以溶解,不便与乳液结合,近年来生产出的衍生物azelaoidiglycine,在其浓度含量为3%的口者喱中有显著的美白效果。 植物萃取物:许多植物萃取物具有美白肌肤的作用,而当前的问题是如何正确辨别它们内部的活性成分。譬如,中国植物蔷薇科属火棘(Pyracanthafortuneana)的衍生物,其美白作用与抑制酪氨酸酵素、抗组氨作用均同步进行,虽然目前仍不清楚这些作用是否来自萃取物中的同一成分,但肯定它包含多酚—— 一种洋甘草(Glycyrrhiza glabra)精油中供研究及散见于多种不同植物中、被确认为具美白功用的物质。 总之,美白配方的功效主要取决于所含成分的类型,人们可以通过试管及人体测试进行评估。不过有研究成果显示,数种活性成分结合产生的护理功效,可高于单一成分功效的总和。某些成分——如硫辛酸、山梨酸、萄糖氨、谷光甘肽及半胱氨酸等——各自的美白功效不大,但结合使用可提高其功效。

有关化妆品的论文范文英语

226 评论(10)

yiqi863

Cosmetics are substances used to enhance or protect the appearance or odor of the human Cosmetics include skin-care creams, lotions, powders, perfumes, lipsticks, fingernail and toe nail polish, eye and facial makeup, permanent waves, colored contact lenses, hair colors, hair sprays and gels, deodorants, baby products, bath oils, bubble baths, bath salts, butters and many other types of Their use is widespread, especially among women in Western A subset of cosmetics is called "make-up," which refers primarily to colored products intended to alter the user’s Many manufacturers distinguish between decorative cosmetics and care The manufacture of cosmetics is currently dominated by a small number of multinational corporations that originated in the early 20th century, but the distribution and sale of cosmetics is spread among a wide range of different The US FDA which regulates cosmetics in the United States defines cosmetics as: "intended to be applied to the human body for cleansing, beautifying, promoting attractiveness, or altering the appearance without affecting the body's structure or " This broad definition includes, as well, any material intended for use as a component of a cosmetic The FDA specifically excludes soap from this The first archaeological evidence of cosmetics usage is found in Egypt around 3500 BC[citation needed] The Ancient Greeks and Romans also used The Romans and Ancient Egyptians used cosmetics containing poisonous mercury and often The ancient kingdom of Israel was influenced by cosmetics as recorded in the Old Testament—2 Kings 9:30 where Jezebel painted her eyes—approximately 840 BC The Biblical book of Esther describes various beauty treatments as In the western world, the advent of cosmetics was in the middle ages, although typically restricted to use within the upper Cosmetic use was frowned upon at some points in Western For example, in the 1800s, make-up was used primarily by prostitutes, and Queen Victoria publicly declared makeup improper, vulgar, and acceptable only for use by Adolf Hitler told women that face painting was for clowns and not for the women of the Master R[citation needed]By the middle of the 20th century, cosmetics were in widespread use in nearly all industrial societies around the Cosmetics have been in use for thousands of The absence of regulation of the manufacture and use of cosmetics has led to negative side effects, deformities, blindness, and even death through the Examples of this were the prevalent use of ceruse(white lead), to cover the face during the Renaissance, and blindness caused by the mascara Lash Lure during the early The worldwide annual expenditures for cosmetics is estimated at US $19 Of the major firms, the oldest and the largest is L'Oréal, which was founded by Eugene Schueller in 1909 as the French Harmless Hair Colouring Company (now owned by Liliane Bettencourt 26% and Nestlé 28%, with the remaining 46% are publicly traded) The market was developed in the USA during the 1910s by Elizabeth Arden, Helena Rubinstein, and Max F These firms were joined by Revlon just before World War II and Estée Lauder just Like most industry, cosmetic companies resist regulation by government agencies like the FDA, and have lobbied against this throughout the While there is assurance from the largest cosmetic companies that their various ingredients are safe to use, there is a growing preference for cosmetics that are without any "synthetic" ingredients, especially those derived from Once a niche market, certified organic products are becoming more New cosmetics using organogels that are water free, perservative free and surfactant free have recently been developed that contain natural Cosmetics that use an organogel base are suitable for use by persons with sensitive Ingredients' listings in cosmetics are highly regulated in many The testing of cosmetic products on animals is a subject of some It is now illegal in the United Kingdom, the Netherlands, and Belgium, and a ban across the European Union is due to come into effect in Many techniques, such as microdermabrasion and physical or chemical peels, remove the oldest, top layers of skin The younger layers of skin left behind appear more plump, youthful, and Permanent application of pigments (tattooing) is also used In addition to over-the-counter cosmetic products, recent years have seen an increasing market for prescription or surgical cosmetic These range from temporary enhancements, such as cosmetic colored contact lenses, to major cosmetic To temporary fashionable enhancement belongs application of false eyelashes or eyelash extensions, in order to enhance the natural eyelashes and make eye appearance more
140 评论(11)

xxxx44

你可以先写化妆品带给我们生活的种种好处,所以大家都很爱使用,接着引出自己最喜爱的化妆品,说出为什么喜欢这个化妆品,优点啊,特点之类的。最后就推荐大家也来用嘛。
113 评论(11)

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