羊毛脂的成分：羊毛脂主要来源于绵羊毛，当绵羊在生长过程中，皮脂腺会分泌出一种油脂，用于保护羊毛免受外界环境的侵害，如雨水、灰尘和微生物的侵蚀，这种油脂便是羊毛脂。在羊毛加工过程中，经过洗毛、提取、精制等一系列复杂工艺，羊毛脂从羊毛中分离出来，成为一种淡黄色至棕黄色的黏稠半固体，具有特殊的气味。​

Ingredients of lanolin: lanolin mainly comes from sheep wool. During the growth process of sheep, sebaceous glands secrete a type of oil to protect wool from external environmental damage, such as rain, dust, and microbial erosion. This oil is called lanolin. In the process of wool processing, after a series of complex processes such as washing, extraction, and refining, lanolin is separated from wool and becomes a viscous semi-solid ranging from light yellow to brownish yellow, with a special odor. ​

羊毛脂的化学成分极为复杂，主要由多种高级脂肪酸与高级脂肪醇所形成的酯类混合物组成，此外还含有游离脂肪酸、甾醇、三萜烯醇及脂肪烃等成分。这些成分相互协作，赋予了羊毛脂卓越的性能。例如，其中的酯类成分使其具有良好的亲肤性和粘附性，能够在皮肤表面形成一层保护膜；甾醇等物质则具有一定的抗炎和抗氧化作用，有助于维护皮肤健康

The chemical composition of lanolin is extremely complex, mainly composed of a mixture of esters formed by various higher fatty acids and higher fatty alcohols, as well as free fatty acids, sterols, triterpenoids, and fatty hydrocarbons. These components work together to endow lanolin with outstanding performance. For example, the ester components in it give it good skin affinity and adhesion, and can form a protective film on the skin surface; Sterols and other substances have certain anti-inflammatory and antioxidant effects, which help maintain skin health

一、良好的亲肤性与保湿性​

1、 Good skin friendly and moisturizing properties

羊毛脂与人体皮肤的脂质成分相似，因此具有出色的亲肤性，能够迅速被皮肤吸收，且不会引起过敏等不良反应。它能够在皮肤表面形成一层透气的保护膜，有效阻止水分的蒸发，从而起到强大的保湿作用。这种保湿效果持久而温和，对于干燥、缺水的皮肤，羊毛脂能够深层滋润，缓解皮肤干燥、起皮等问题，使皮肤保持柔软、光滑和弹性。​

Lanolin is similar in lipid composition to human skin, therefore it has excellent skin affinity, can be quickly absorbed by the skin, and does not cause adverse reactions such as allergies. It can form a breathable protective film on the surface of the skin, effectively preventing the evaporation of moisture and thus playing a powerful moisturizing role. This moisturizing effect is long-lasting and gentle. For dry and dehydrated skin, lanolin can deeply moisturize and relieve problems such as dryness and peeling, keeping the skin soft, smooth, and elastic.

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二、优异的粘附性与乳化性​

2、 Excellent adhesion and emulsifying properties

羊毛脂的粘附性使其能够牢固地附着在各种物质表面，无论是皮肤、织物还是金属等。在化妆品和医药制剂中，这种特性使其成为理想的基质材料，能够帮助其他成分更好地附着和发挥作用。同时，羊毛脂具有良好的乳化性能，可以将水和油两种不相溶的物质均匀混合，形成稳定的乳状液。这一特性在化妆品的生产中尤为重要，许多乳液、面霜等产品都依赖羊毛脂的乳化作用，以实现良好的质地和使用效果。​

The adhesiveness of lanolin enables it to firmly adhere to various material surfaces, whether they are skin, fabric, or metal. In cosmetics and pharmaceutical preparations, this characteristic makes it an ideal matrix material that can help other ingredients adhere and function better. Meanwhile, lanolin has excellent emulsifying properties and can evenly mix two immiscible substances, water and oil, to form a stable emulsion. This characteristic is particularly important in the production of cosmetics. Many lotion, face cream and other products rely on the emulsification of lanolin to achieve good texture and use effect. ​

三、化学稳定性与抗氧化性​

3、 Chemical stability and antioxidant activity

羊毛脂具有较高的化学稳定性，在常温下不易发生氧化、分解等化学反应，能够长期保持其性能稳定。其内部含有的抗氧化成分，如甾醇等，能够有效抵御自由基的侵害，防止自身氧化变质，同时也有助于保护与之混合的其他成分，延长产品的保质期。这使得羊毛脂在储存和使用过程中更加可靠，减少了因成分变质而导致的产品质量问题。

Lanolin has high chemical stability and is not prone to chemical reactions such as oxidation and decomposition at room temperature, which can maintain its stable performance for a long time. The antioxidant components contained inside, such as sterols, can effectively resist the invasion of free radicals, prevent self oxidation and deterioration, and also help protect other ingredients mixed with it, extending the shelf life of the product. This makes lanolin more reliable during storage and use, reducing product quality issues caused by component deterioration.

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