CN112043645B - 护肤品组合物 - Google Patents

护肤品组合物 Download PDF

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CN112043645B
CN112043645B CN202011067469.9A CN202011067469A CN112043645B CN 112043645 B CN112043645 B CN 112043645B CN 202011067469 A CN202011067469 A CN 202011067469A CN 112043645 B CN112043645 B CN 112043645B
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廖玲
俞超俊
蔺会杰
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Mifang (Hangzhou) Cosmetics Co.,Ltd.
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Abstract

一种护肤品组合物,包含以下组分:核糖0.5‑10重量%,樱花提取物0.1‑2.5重量%,花色苷0.05‑1重量%,聚二甲基硅氧烷交联聚合物15‑20重量%,透明质酸钠0.5‑5重量%,卡波姆0.5‑3重量%,抗坏血酸葡萄糖苷0.5‑3重量%,多元醇5‑15重量%,纳米TiO22‑8重量%,余量水,pH调节剂调节pH值至5.5‑7.5。通过将樱花提取物和花色苷复配使用后,可以对核糖糖化过程中的两个阶段均起到有效的抑制作用,因而体现出了良好的核糖糖化抑制效果。

Description

护肤品组合物
技术领域
本发明涉及一种护肤品组合物,具体涉及包含核糖的护肤品组合物。
背景技术
目前,市面上的护肤产品种类很多,其作用都是用于改善皮肤的健康和/或外观。其中,皮肤老化是最受人们重视的皮肤护理问题,用于缓解或治疗皮肤老化的护肤组合物中,包括天然的护肤剂、合成的护肤剂。核糖是使用最广范的一种护肤剂。但是,核糖容易糖化,并使得皮肤表面细纹增多,呈现暗黄色。
核糖糖化反应,即非酶糖基化反应,其基本原理是还原性糖,如葡萄糖、核糖、木糖等,在没有酶的催化促进作用下,直接与蛋白质中的氨基相结合,发生席夫碱反应。这种初始阶段的席夫碱反应并不稳定,具有一定的可逆性,但是,随着时间的推移和外部环境的变化,反应产物会发生氧化、脱氢、重排等反应,最终形成晚期糖基化终末产物(AGEs)。这种晚期糖基化终末产物是一类不可逆的、呈现发黄变褐状态的生物垃圾,还会导致皮肤中的蛋白质发生交联,尤其是皮肤中的胶原蛋白和弹性蛋白等发生交联,进而表现为皮肤弹性变差,细纹和皱纹增多,皮肤暗黄等。
有研究发现,酸性环境下,特别是pH小于4的酸性环境下,非酶糖基化反应明显减弱,核糖糖化现象可以得到明显改善。为了充分利用核糖的护肤作用,宝洁公司等提出了将含有核糖的护肤品的pH控制在5以下,甚至4以下的范围内。然而,正常人体皮肤的pH值通常介于5-7之间,呈现微酸性,最低约为4,最高约为9.6。通常,皮肤对于pH介于4.5-6.5范围内的酸性介质具有缓冲能力,如果皮肤长时间处于4.5以下的酸性环境,皮肤的碱中和能力就会减弱,肤质就会发生改变,最终导致皮肤变得容易衰老和损害。
因此,需要设计一种pH值介于5.5-7.5之间的包含核糖的护肤品组合物,且该护肤品组合物中还应当包含抑制核糖糖化的组分。
发明内容
为了解决现有的包含核糖的护肤品组合物中所存在的上述问题,本发明旨在提供一种护肤品组合物,其pH值与正常皮肤的pH值相当,且包含核糖护肤剂和能够在该pH范围内抑制核糖糖化的组分。
一种护肤品组合物,包含以下组分:
核糖 0.5-10重量%,
樱花提取物 0.1-2.5重量%,
花色苷 0.05-0.5重量%,
聚二甲基硅氧烷交联聚合物 15-20重量%,
透明质酸钠 0.5-5重量%,
卡波姆 0.5-3重量%,
抗坏血酸葡萄糖苷 0.5-3重量%,
多元醇 5-15重量%,
纳米TiO2 2-8重量%,
余量水,
pH调节剂调节pH值至5.5-7.5。
其中,所述多元醇选自丙二醇、二丙二醇、聚乙二醇、山梨醇、丁二醇、甘油、木糖醇、甘露糖醇、葡萄糖醇、赤藓醇中的一种或多种。
除此之外,本发明的护肤品组合物中还可以包括1-5重量%的其他添加剂,所述其他添加剂选自增稠剂、防腐剂、芳香剂、防晒剂、靓肤剂中的一种或多种。
实验研究发现,核糖与樱花提取物、花色苷、蛋白质共存的情况下,樱花提取物和花色苷具有明显的抑制AGEs的功效,特别是当樱花提取物的含量超过0.1重量%,以及花色苷的含量超过0.05重量%的情况下,即便核糖处于pH介于5.5-7.5的环境中,核糖糖化现象也被明显抑制。
为了进一步验证樱花提取物和花色苷对于核糖糖化的抑制作用,本发明还单独对樱花提取物、花色苷的作用进行的实验验证,结果发现,在pH介于5.5-7.5之间时,单独的樱花提取物或者花色苷,对于核糖糖化的抑制效果都不理想。也就是说,樱花提取物和花色苷的复配使用,对于pH介于5.5-7.5的环境中的核糖和蛋白质之间的糖化反应具有明显的抑制作用,属于两种物质的复配效果。
樱花提取物具有一定抗氧化能力的,基于其本身的抗氧化能力,对于核糖糖化具有一定的抑制作用,其抑制作用主要作用于席夫碱反应阶段,且这种抑制作用会随着核糖和蛋白质所处的环境的pH的变化而变化,在碱性环境中,樱花提取物对于核糖糖化的抑制效果比较明显,而在pH介于5.5-7.5的中性或微酸性环境中,樱花提取物对于核糖糖化的抑制效果却相对较差。
而花色苷属于黄酮类物质,具有很强的自由基清除能力,也具有很强的抗氧化性能,但是,花色苷的抗氧化性能是通过降低催化酶的活性而体现出来的。而核糖糖化反应,即非酶糖基化反应,是在没有酶的催化促进作用下进行的,因此,花色苷对于糖化反应中的第一步反应,即席夫碱反应并无太大的抑制作用,从而使得席夫碱反应产物逐渐增多。虽然花色苷具有的很强的自由基清除能力,其能够清除席夫碱反应的反应产物中的自由基,可以在席夫碱反应的反应产物发生氧化、脱氢、重排等反应阶段发挥较好的抑制作用,但是,其对于整个糖化反应,以及最终的晚期糖基化终末产物的抑制作用并不理想。
当把樱花提取物和花色苷复配使用后,可以对核糖糖化过程中的两个阶段均起到有效的抑制作用,因而体现出了良好的核糖糖化抑制效果。
进一步地,为了充分发挥樱花提取物和花色苷的抑制AGEs的功效,优选樱花提取物与核糖的质量比例大于等于0.2;优选花色苷与核糖的质量比例大于等于0.1。
具体实施方式
以下内容是通过具体的实例对本发明的技术方案和效果进行详细说明,所记载的实施例是基于本发明的代表性的实施方案,但本发明不限定于这些实施方案。
实施例
一种护肤品组合物,包含以下组分:
核糖 0.5-10重量%,
樱花提取物 0.1-2.5重量%,
花色苷 0.05-1重量%,
聚二甲基硅氧烷交联聚合物 15-20重量%,
透明质酸钠 0.5-5重量%,
卡波姆 0.5-3重量%,
抗坏血酸葡萄糖苷 0.5-3重量%,
多元醇 5-15重量%,
纳米TiO2 2-8重量%,
余量水,
pH调节剂调节pH值至5.5-7.5。
其中,所述多元醇选自丙二醇、二丙二醇、聚乙二醇、山梨醇、丁二醇、甘油、木糖醇、甘露糖醇、葡萄糖醇、赤藓醇中的一种或多种。
除此之外,本发明的护肤品组合物中还可以包括1-5重量%的其他添加剂,所述其他添加剂选自增稠剂、防腐剂、芳香剂、防晒剂、靓肤剂中的一种或多种。
进一步地,为了充分发挥樱花提取物和花色苷的抑制AGEs的功效,优选樱花提取物与核糖的质量比例大于等于0.2;优选花色苷与核糖的质量比例大于等于0.1。
基于以上组成限定,参照表1中给出个组分的比例列出了多个实例,包括实施例1-4和对比例1-2。分别将6个实例中的护肤品组合物应用在志愿者的皮肤表面,然后进行成晚期糖基化终末产物测定,用分光光度计检测皮肤表面的与晚期糖基化终末产物相关联的荧光强度(“FLR”),每天施用8h后检测一次,以皮肤表面未使用护肤品组合物的FLR为参考,然后比较每天的FLR与其的差值ΔFLR,具体结果如表1所示。
表1
Figure 939053DEST_PATH_IMAGE002
从表1的结果可以看出,本发明的护肤品组合物能够有效抑制皮肤中的糖化,实施例1-4给出了很好的证明。
相较而言,在对比例1中,仅仅使用了樱花提取物,使得护肤品组合物对于皮肤中的糖化的抑制作用有限,然而,随着时间的推移,皮肤的糖化会越发严重。类似地,在对比例2中,仅仅使用了花色苷,也出现了类似的结果。
此外,在实施例4中,由于樱花提取物与核糖的质量比例、花色苷与核糖的质量比例均为0.0625,不是本发明的优选范围,其对于皮肤糖化的抑制效果也相应的变差。

Claims (3)

1.一种护肤品组合物,包含以下组分:
核糖 0.5-10重量%,
樱花提取物 0.1-2.5重量%,
花色苷 0.05-1重量%,
聚二甲基硅氧烷交联聚合物 15-20重量%,
透明质酸钠 0.5-5重量%,
卡波姆 0.5-3重量%,
抗坏血酸葡萄糖苷 0.5-3重量%,
多元醇 5-15重量%,
纳米TiO2 2-8重量%,
余量水,
pH调节剂调节pH值至6.5;所述樱花提取物与所述核糖的质量比例大于等于0.2;所述花色苷与所述核糖的质量比例大于等于0.1。
2.如权利要求1所述的一种护肤品组合物,其特征在于,所述多元醇选自丙二醇、二丙二醇、聚乙二醇、山梨醇、丁二醇、甘油、木糖醇、甘露糖醇、葡萄糖醇、赤藓醇中的一种或多种。
3.如权利要求1所述的一种护肤品组合物,其特征在于,所述护肤品组合物中还包括1-5重量%的其他添加剂,所述其他添加剂选自增稠剂、防腐剂、芳香剂、防晒剂、靓肤剂中的一种或多种。
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