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class="button">聯(lián)系我們</a></div></div><div id="mg7qpqm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海北倉化工科技有限公司</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</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="r32fwnk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ed9ah3d" class="box"><p><p style="text-indent:25px">相對于維生素C，揚州維生素C乙基醚廠，維生素C乙基醚（3-O-乙基抗壞血酸）是一種親油親水的兩性維生素C衍生物，揚州維生素C乙基醚廠，這不僅使其在配方中能夠極為方便的使用，揚州維生素C乙基醚廠，更加使其容易穿透角質(zhì)層進(jìn)入真皮層，進(jìn)入真皮層后被生物酶分解發(fā)揮VC的作用，提高VC的利用度，從而起到更好的美白淡斑的功效。除此以外，普通維生素C則很難被皮膚吸收，生物利用度很低，而維生素C乙基醚相對普通維生素C顯示出極高的穩(wěn)定性。目前國內(nèi)生產(chǎn)的維生素C乙基醚產(chǎn)品在水溶液或是固體狀態(tài)保存的條件下均會有顏色逐漸變黃的現(xiàn)象，這極大的制約了該產(chǎn)品的保存和使用。主要是因為在目前的維生素C乙基醚的生產(chǎn)過程中，經(jīng)歷了從維生素C上保護(hù)基脫保護(hù)劑的過程。維生素C乙基醚能夠中和自由基，損害皮膚引起老化和黑暗的皮膚色素沉著。揚州維生素C乙基醚廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚州維生素C乙基醚廠,維生素C乙基醚" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326789137441406/5852424.png"></div><p style="text-indent:25px">維生素C乙基醚測量色度方法：紫外可見分光光度法。操作方法：除另有規(guī)定外，如供試品為原料藥，稱取各品種項下規(guī)定量的供試品，加水溶解使成10ml（或加水溶解使成規(guī)定量的體積），必要時濾過，取續(xù)濾液照紫外可見分光光度法于規(guī)定的波長處測定吸光度。如供試品為固體制劑，取該供試品研細(xì)，稱取該藥品項下規(guī)定量的細(xì)粉，加水溶解使成規(guī)定量的體積，振搖或用其他規(guī)定的方法使溶解，濾過，取續(xù)濾液照紫外可見分光光度法于規(guī)定波長處測定吸光度。?如供試品為注射液或液體制劑，量取供試品適量，加水或規(guī)定的溶劑稀釋成規(guī)定的濃度（供試品的濃度與規(guī)定濃度相同時，可直接測定），照紫外可見分光光度法，以水或規(guī)定的溶劑為空白，于規(guī)定波長處測定吸光度。揚州維生素C乙基醚廠維生素C乙基醚的使用使皮膚方向較為一致變?yōu)榉较螂s亂的網(wǎng)狀結(jié)構(gòu)，正是老化肌和年輕肌的特點。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚州維生素C乙基醚廠,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乙基醚用途：可用于凝膠、精華素、乳液、膏霜等美白淡斑、**老及其它護(hù)膚品。維生素C乙基醚是一種的親油親水的兩性維生素C衍生物，這不僅使其在配方中能夠極為方便的使用，更加使其容易穿透角質(zhì)層進(jìn)入真皮層，進(jìn)入皮膚后容易被生物酶分解而發(fā)揮維C的作用，從而提高其生物利用度，另外，而普通的維生素C則很難被皮膚吸收，生物利用度很低。另外，維生素C乙基醚相對普通的維生素C還顯示出極高的穩(wěn)定性。產(chǎn)品功效：本品通過阻抑酪氨酸酶的Cu2+活性，阻斷***；防止日光引起的皮膚炎癥；改善皮膚色澤，促進(jìn)膠原蛋白產(chǎn)生，增加皮膚彈性。</p><p style="text-indent:25px">針對維生素C的市場應(yīng)用局限性，**對其進(jìn)行改良，使其充分發(fā)揮作用，目前zui常用的有兩種方法，一是把維生素C制成酯溶性的化妝品，這樣既穩(wěn)定了維生素C的還原力，而且還可以利用脂性物質(zhì)易深入皮膚的特點，使其順利地進(jìn)入皮膚。二是把維生素c制作成磷酸鎂鹽，因為磷酸鎂鹽經(jīng)皮膚吸收后，全被皮膚里的磷酸鹽分解酶所分解，從而發(fā)揮其作用。維生素C乙基醚（VC乙基醚）是一種親油親水的兩性維生素C衍生物，不僅保留了維生素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，而且它是親油親水兩性物質(zhì)，這不僅使其在配方中能夠極為方便的使用，更加使其容易穿透角質(zhì)層進(jìn)入真皮層，進(jìn)入皮膚后容易被生物酶分解而發(fā)揮維C的作用，從而提高其生物利用度。維生素C乙基醚在PH值3.0-6.0的環(huán)境中更穩(wěn)定。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="揚州維生素C乙基醚廠,維生素C乙基醚" src="https://tyunfile.71360.com/UploadFile/shbeicanghuagong/637326789055488281/5916318.png"></div><p style="text-indent:25px">維生素C乙基醚是一種維生素C衍生物，通過人工合成得到，既克服了維生素C不穩(wěn)定的缺點，又極好地發(fā)揮了維生素C的生理功能。維生素C乙基醚具有親油和親水結(jié)構(gòu)，易于皮膚吸收，可直達(dá)真皮層。維生素C乙基醚進(jìn)入真皮層后直接參與膠原蛋白的合成，修復(fù)皮膚細(xì)胞活性，使膠原蛋白增加，從而使皮膚變得充盈富有彈性，使肌膚細(xì)膩光滑。阻抑酪氨酸酶活性，阻抑***，還原黑色素為無色，高效美白肌膚。有優(yōu)越的抗氧化效果，確保維生素C的利用度，相對維生素C而言，維C乙基醚非常穩(wěn)定，且不變色，真正達(dá)到美白淡斑的效果傳統(tǒng)的維生素C乙基醚生產(chǎn)方法整體工藝復(fù)雜,成本高,產(chǎn)品的收率低,急需要在生產(chǎn)工藝上進(jìn)一步進(jìn)行改良。揚州維生素C乙基醚廠</p><p style="text-indent:25px">維生素C乙基醚以其淡斑美白作用以及高安全性得到認(rèn)可。揚州維生素C乙基醚廠</p><p style="text-indent:25px">維生素C乙基醚說的是具有美白淡斑組合物及美白淡斑護(hù)膚品，根據(jù)所描述的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。可以通過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、易變色等問題，降低了光線、熱對功效成分的影響，使其活性降低的問題；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)膚品沒有其他作用，安全性好，能達(dá)到長久美白淡斑作用。揚州維生素C乙基醚廠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2726815.html</p></div></div></div></div></div><div id="nm8p2p4" class="page-right twoColRt"><div id="f3pg3hg" class="box01 margin10 clearfix"><h3><a 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