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Polyhydroxy- Stearic Acid

POLYHYDROXYSTEARIC ACID, with CAS Number 27924-99-8, is a natural, soft, pliable wax derived from castor oil. It serves as a texturizing agent, thickener, emollient, and film former in lotions, creams, and color cosmetics. Furthermore, it can function as an oil-gelling agent. It acts as a film former, emulsion stabilizer, sunscreen enhancer, and plasticizer, making it perfect for creating creamier textures and enhancing the stability of emulsions.

聚羥基硬脂酸, POLYHYDROXYSTEARIC ACID, 化妝品添加物, 化妝品成分, 保養品成分, 保養品添加物, 乳化劑, 潤膚劑, 彩妝產品, 防曬產品, 皮膚柔軟, 皮膚平滑, 安全使用, 天然成分, 蓖麻油提取, 薄膜形成


Effects in Cosmetics

Polyhydroxystearic Acid has a variety of effects and applications, some of which are listed below:

Acts as a film-forming agent, creating a protective layer on the skin surface.
As an emulsifier, it helps mix oil and water components, offering stability and uniform distribution.
As an emollient, it fills the gaps between dead skin cells on the surface, making the skin appear softer and smoother.
Used in sunscreens to coat oxide particles, it helps evenly disperse sunscreen on the skin, increasing its effectiveness.


Polyhydroxystearic Acid is obtained through the polymerization of hydroxystearic acid from castor oil.

Globally Harmonized System of Classification and Labelling of Chemicals 


Considered to be safe for use in cosmetics and personal care products.
Low risk of Cancer, Allergies & Immunotoxicity.
Classified as not expected to be potentially toxic or harmful and does not cause organ system toxicity (non-reproductive), Developmental and Reproductive Toxicity.
Not suspected to be an environmental toxin or bioaccumulative.


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