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href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/third-huagong_qtfltz/">其他未分類</a>?哈爾濱維生素C乙基醚現(xiàn)貨誠(chéng)信經(jīng)營(yíng) 上海北倉(cāng)化工科技供應(yīng)</p><div id="8lxzbdu" class="leftbox clearfix"><h1>哈爾濱維生素C乙基醚現(xiàn)貨誠(chéng)信經(jīng)營(yíng) 上海北倉(cāng)化工科技供應(yīng)</h1><div id="gu2z2zo" class="proBig"><div id="pn3ry3q" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788920253906/3690018.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="encjqcj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788920253906/3690018.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uyasoah" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>哈爾濱維生素C乙基醚現(xiàn)貨,維生素C乙基醚</p><p><span>***更新：</span>2021-01-01 03:15:10</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="k2u3dpb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海北倉(cāng)化工科技有限公司</a></p><p><span>聯(lián)系人：</span>王金良</p><p><span>郵箱: </span>shbeicang@vip.126.com</p><p><span>電話: </span>18516286991</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.shbeicang.cn</p><p><span>手機(jī): </span>021-60459206</p><p><span>地址: </span>金山大道4168號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="o2x4ykm" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="fo7kryf" class="box"><p><p style="text-indent:25px">維生素C乙基醚產(chǎn)品類別：維生素C衍生物；化妝品美白淡斑原料，哈爾濱維生素C乙基醚現(xiàn)貨，哈爾濱維生素C乙基醚現(xiàn)貨。理化性質(zhì)：本品維生素C乙基醚為白色或類白色結(jié)晶性粉末，無(wú)臭，味微苦，在水、醇、油中易溶解，哈爾濱維生素C乙基醚現(xiàn)貨。性狀：白色或類白色結(jié)晶性粉末。含量：ge;99.0%；PH值：4.0-5.0。水分：le;0.5%；熔點(diǎn)：111-116℃；重金屬：le;10ppm；砷含量：le;2ppm；菌落總數(shù)：le;100cfu/g；熾灼殘?jiān)簂e;0.2%。溶解性試驗(yàn)：溶液應(yīng)為無(wú)色至淡黃色透明。VC乙基醚主要用途：化妝品美白淡斑原料，抗氧化，有較強(qiáng)的抑菌***作用，廣泛應(yīng)用于凝膠、精華素、乳液、膏霜等美白淡斑、**老及其它護(hù)膚品中。正常添加量為0.5%-2.0%，建議在配方中加入0.2%檸檬酸鈉；在40℃以下加入體系中；配方的pH值控制在4.0-6.0范圍，從而達(dá)到比較好的效果。維生素C乙基醚弱酸性的皮膚表面安全、穩(wěn)定。哈爾濱維生素C乙基醚現(xiàn)貨</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱維生素C乙基醚現(xiàn)貨,維生素C乙基醚" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788920253906/3690018.png"></div><p style="text-indent:25px">我們知道，維生素C可有效的防止黑色素的生成。但是，當(dāng)直接用于皮膚時(shí)，它對(duì)皮膚的美白并沒(méi)有效果。在在人和動(dòng)物身體上進(jìn)行的臨床測(cè)試中，證明，當(dāng)添加量為2%時(shí)，維生素C乙基醚有漂白和美白的雙重效果。它可以調(diào)節(jié)和變亮被陽(yáng)光破壞和看起來(lái)灰暗的帶黑斑的皮膚。維生素C乙基醚按皮膚細(xì)胞和膠原質(zhì)的損耗的比例來(lái)作用于它們的構(gòu)成與合成。它的活性的水平和維生素C酯化磷酸鹽相似。維生素C乙基醚修復(fù)膠原質(zhì)的活性包括膠原質(zhì)的構(gòu)成和合成。而且它可以減少酪胺酸酶的二價(jià)銅離子以減弱酪胺酸酶的活性，因此防止黑斑的形成。哈爾濱維生素C乙基醚現(xiàn)貨維生素C乙基醚是親油親水兩性物質(zhì)，這有效的擴(kuò)展了他的適用范圍。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱維生素C乙基醚現(xiàn)貨,維生素C乙基醚" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788596728515/9282784.png"></div><p style="text-indent:25px">VC乙基醚是VC衍生物，性狀為白色或者類白色結(jié)晶粉末，易溶于水主要所用為一直黑色素，PH4.0-5.5時(shí)穩(wěn)定，含量為99%，耐光、耐熱、耐酸、耐堿、耐鹽和空氣氧化。維生素C乙基醚是維生素C的衍生物，它保留了維生素C的氧化還原作用而且非常穩(wěn)定，是不變色的維生物C衍生物，它是親油親水兩性物質(zhì)，決定了它可以穿透角質(zhì)進(jìn)入皮革層發(fā)揮功效的特點(diǎn)，而成為全世界安全美白產(chǎn)品的新寵。美白產(chǎn)品需求量一直占有很大的比例，迄今為止仍然較大，而顧客的追求將令美白產(chǎn)品不斷發(fā)展更新。一直以來(lái)，美白淡斑都是人們所熱切關(guān)注的話題。人們希望通過(guò)美白護(hù)理品的使用而得到白皙、光潔的皮膚，更有一些利用功能型美白化妝品來(lái)減輕老年斑、黃褐斑等色素沉積。</p><p style="text-indent:25px">維生素C乙基醚所述的美白淡斑組合物及美白淡斑護(hù)膚品，所述美白淡斑組合物分由VC乙基醚、熊果苷、白芷提取物、煙酰胺、甘草酸二鉀、野菊維素組成?？梢酝ㄟ^(guò)有效阻礙或阻止皮膚黑色素的生成、轉(zhuǎn)移，可以快速、有效地達(dá)到美白效果；能夠有效地解決美白活性成分易分解、易氧化、易變色等問(wèn)題，降低了光線、熱對(duì)功效成分的影響，使其活性降低的問(wèn)題；使用維生素C乙基醚所述的美白淡斑組合物及美白淡斑護(hù)膚品沒(méi)有其他作用，安全性好，能達(dá)到長(zhǎng)久美白淡斑作用。想要擁有白皙光滑的肌膚，需要每天使用含有維生素C乙基醚護(hù)膚品。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱維生素C乙基醚現(xiàn)貨,維生素C乙基醚" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326788904160156/3342028.png"></div><p style="text-indent:25px">維生素C乙基醚安全性和穩(wěn)定性：在PH值3.0-6.0的環(huán)境中，兩年以上不變色，更穩(wěn)定。維生素C容易被加熱、空氣、光照和金屬這樣的條件氧化，因此很容易被破壞。當(dāng)混合在化妝品中時(shí)，它就變質(zhì)了。維生素C乙基醚是一種解決了維生素C的結(jié)構(gòu)不穩(wěn)定性的產(chǎn)品，且其在人體中按維生素C的方式降解。它在弱酸性的皮膚表面安全、穩(wěn)定。在生產(chǎn)廠家進(jìn)行的測(cè)試中，維生素C乙基醚在緩沖液和和水溶液中穩(wěn)定，其第三位的乙氧基保護(hù)其不受金屬離子的破壞。因此，混合了這種產(chǎn)品的膏霜和懸浮液不會(huì)受到污點(diǎn)和大氣的影響。維生素C乙基醚可以溶于包括水、油、酒精在內(nèi)的許多溶劑，因此可以混合與任何配方的溶劑中。哈爾濱維生素C乙基醚現(xiàn)貨</p><p style="text-indent:25px">維生素C乙基醚衍生物的出現(xiàn)，使以往護(hù)膚品中出現(xiàn)的問(wèn)題得到了解決。哈爾濱維生素C乙基醚現(xiàn)貨</p><p style="text-indent:25px">維生素C乙基醚為白色晶體或晶狀粉末，無(wú)嗅或有由乙醛和維生素C組成的獨(dú)特氣味（材料的特征性）。3-O-乙基抗壞血酸醚是用乙氧基團(tuán)取代了維生素C的第三個(gè)羥基，要比維生素C穩(wěn)定的多。維生素C乙基醚的摩爾活性和維生素C相似。相對(duì)VC而言，VC乙基醚非常穩(wěn)定，且不變色。具有親油和親水結(jié)構(gòu)，易于吸收穩(wěn)定性好，耐光、耐熱、耐酸、耐堿、耐鹽和空氣氧化強(qiáng)。大部分化妝品都含有很多油脂，因此很容易被紫外線、高溫和濕氣氧化。當(dāng)過(guò)期使用或儲(chǔ)存不當(dāng)時(shí)，就會(huì)引起一些皮膚問(wèn)題和刺激。由于這個(gè)原因，化妝品制造廠通常在化妝品中加入象BHT，BHA和維生素E這樣的抗氧化劑。但是，這些抗氧化劑都是油溶性的，在人體中不容易被降解。維生素C乙基醚是一種既溶于水又溶于油的高效抗氧化劑，它可以減少化妝品中油的過(guò)氧化的發(fā)生，防止變質(zhì)。維生素C乙基醚在人體中按維生素C的方式降解。哈爾濱維生素C乙基醚現(xiàn)貨</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2651270.html</p></div></div></div></div></div><div id="2mo8acz" class="page-right twoColRt"><div id="mbdkmtk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="c8m9myp" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 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