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Commonly known as piceol, it is a white needle crystal at room temperature, which is flammable and soluble in hot water, while methanol, ethanol, ether, acetone and benzene are insoluble in petroleum ether. It naturally exists in the stems and leaves of Artemisia scoparia of Compositae, and the roots of Artemisia capillaris, Panax ginseng and Rattan of Asclepiadaceae, etc.

HD-100 (hydroxyethyl sulfonic acid) is a broad-spectrum water-soluble cationic antimicrobial against bacteria, mold and yeast. It can be used as a multi-effect preservative and a skin sterilizing agent. Moreover, it is widely used in that cosmetic industry, with prominent anti-acne, oil control, anti-stimulation and anti-dandruff effects. HD-100 (hydroxyethyl sulfonic acid) has outstanding skin and mucous membrane tolerance, and has a very excellent safety factor compared with other antibacterial agents.

P.O. is easily soluble in ethanol and slightly soluble in water, which is safe, nontoxic and non-irritating. Up to now, it is the only anti-dandruff and antipruritic agent that can be used in disposable hair products. P.O. has broad-spectrum killing effect on fungi and mold, with excellent therapeutic effect on tinea of feet and hands.

Vitamin C ethyl ether is a very useful vitamin C derivative, which is not only chemically stable, but also a non-discoloring vitamin C derivative, and an lipophilic and hydrophilic amphoteric substance. This has greatly expanded his scope of application, especially in daily chemistry. 3-O-Ethyl-L-ascorbic acid can easily enter dermal layer through cuticle, and after entering skin, it can be easily decomposed by biological enzyme to play the role of vitamin C, thus improving its bioavailability, while ordinary vitamin C is difficult to be absorbed by skin and its bioavailability is very low. Compared with common vitamin c, vitamin c ethyl ether also shows high stability.

Octyl hydroxamic acid CHA, an ideal bacteriostatic organic acid, has excellent antibacterial and bacteriostatic properties at acidic to neutral pH value, especially for mold. CHA, as a drug, has been used in animals and human beings for a long time. Its toxicity has been studied extensively and deeply, and it has high safety. Moreover, it can be used in preservative-free formula system instead of traditional preservatives, and is widely used in Europe, America, Japan, Korea and other regions.