产品描述
1. 技术指标 Technical indicators
项目 thing | 指标 index |
外观 Appearance | 白色或类白色结晶性粉末 White or almost white crystal powder |
含量 Assay | ≥98.0% |
熔点 Melting point | 92.0~96.0℃ |
干燥失重 Loss on drying | ≤0.5% |
灼烧残渣 Ignition residur | ≤0.5% |
重金属 Heavy metals | 10ppm |
砷 Arsenic | ≤2ppm |
2.特点 Characteristics
为曲酸的脂溶性衍生物，它不但克服了曲酸对光、热的不稳定以及遇金属离子变色的缺点，而且由于其分子结构中不存在羟基基团，不会与化妆品体系中的防腐剂、防晒剂或其它活性成份形成氢键而影响这些添加剂的功效，具有优异的复配性能。作为化妆品中的脂溶性添加剂，除更容易配方外，还能够更有效地为皮肤所吸收，给皮肤带来良好的滋润作用。
As a fat-soluble derivative of kojic acid, it not only overcomes the shortcomings of kojic acid's instability to light and heat and discoloration when exposed to metal ions, but also because there is no hydroxyl group in its molecular structure, it will not form hydrogen bonds with preservatives, sunscreens or other active ingredients in the cosmetic system to affect the efficacy of these additives, and has excellent compounding properties. As a fat-soluble additive in cosmetics, it is easier to formulate and can be more effectively absorbed by the skin, providing good moisturizing effects on the skin.
3.应用 Applications
曲酸二棕榈酸酯主要应用于化妆品领域，具体包含以下方向：
Kojic acid dipalmitate is mainly used in the cosmetics field, specifically including the following directions:
美白护肤品
Whitening skin care products
作为核心美白添加剂，通过高效抑制酪氨酸酶活性，阻断黑色素生成路径，实现提亮肤色和均匀肤质的效果。其脂溶性特性使其更易被皮肤吸收，美白效率优于传统曲酸。
As a core whitening additive, it can effectively inhibit the activity of tyrosinase and block the melanin production pathway to achieve the effect of brightening the skin tone and even skin texture. Its fat-soluble properties make it easier to be absorbed by the skin, and its whitening efficiency is better than traditional kojic acid.
祛斑修复产品
Freckle repair products
专项用于改善黄褐斑、老年斑、雀斑及各类色素沉着问题。其分子结构能软化角质层，促进代谢排出已形成的黑色素，对皮肤斑点修复效果显著，且获医学界认可。
Specially used to improve chloasma, age spots, freckles and various pigmentation problems. Its molecular structure can soften the stratum corneum, promote the metabolism and excretion of the formed melanin, and has a significant effect on skin spot repair, and is recognized by the medical community.
防晒与抗氧产品
Sunscreen and antioxidant products
兼具紫外线吸收功能，可增强防晒产品的防护效能；同时具备抗氧化性，帮助抵御自由基损伤，维护皮肤健康状态。
It has both ultraviolet absorption function, which can enhance the protective effect of sunscreen products; at the same time, it has antioxidant properties, helps to resist free radical damage and maintain the healthy state of the skin.
配方稳定性优势
Formula stability advantage
克服了曲酸对光、热及金属离子不稳定的缺陷，在化妆品体系中不易氧化变色，且分子结构避免与防腐剂、防晒剂等活性成分产生氢键干扰，复配性能优异。
It overcomes the defects of kojic acid being unstable to light, heat and metal ions, is not easy to oxidize and discolor in the cosmetic system, and its molecular structure avoids hydrogen bond interference with active ingredients such as preservatives and sunscreens, and has excellent compounding performance.
主流产品形式
Mainstream product form
广泛应用于精华液、乳液、面霜、面膜等剂型，使用时需溶于油相（如矿物油、棕榈酸异丙酯），建议添加量为配方总量的1%-3%，并在温度高于68℃时乳化以保证溶解性。
It is widely used in essences, lotions, creams, masks and other dosage forms. It needs to be dissolved in the oil phase (such as mineral oil, isopropyl palmitate) when used. The recommended addition amount is 1%-3% of the total formula, and it should be emulsified at a temperature above 68°C to ensure solubility.
4.注意事项 Notes:
本品对光、温度和酸碱度不敏感，要求最终产品的pH值为5.0~8.0；
This product is not sensitive to light, temperature and pH, and the pH value of the final product is required to be 5.0~8.0;
体系中避免引⼊三价铁离⼦，使⽤时可以加⼊络合剂如EDTA；
Avoid introducing trivalent iron ions into the system, and add complexing agents such as EDTA when using it;
本品较难配⽅，使⽤时容易析出结晶。为解决这个问题，建议使⽤棕榈酸异丙酯或⾁⾖蔻酸异丙酯，将其 混合加热溶解后加⼊到油相中。
This product is difficult to formulate and is prone to crystallization when used. To solve this problem, it is recommended to use isopropyl palmitate or isopropyl myristate, mix them, heat and dissolve them, and then add them to the oil phase.
5.包装和储存条件 Package and Storage
保管及储存：该产品应储存在通风、干燥、避光处；有效保质期2年。
Storage and preservation: The product should be stored in a ventilated, dry and dark place; the effective shelf life is 2 years.
包装：25公斤内塑、铝泊袋包装，外纸板桶。根据客户要求订做。
Packaging:25 kg inner plastic, aluminum foil bag packaging, outer cardboard barrel. Customized according to customer requirements.
注意事项：如不慎带入口中、眼中，请用水清洗。
Note: If you accidentally take it into your mouth or eyes, please wash it with water.