化妝品防腐劑成分使用基準表
94年6月1日衛署藥字第0940306890號公告增列
Cetylpyridinium chloride 1.0%
使用於用後沖洗掉產品,限量5.0%
使用於接觸黏膜部位產品,限量0.01%

Cetylpyridinium chloride (CPC) is a quaternary ammonium salt antiseptic that is used in many over-the-counter personal-care products: mouthwashes, toothpastes, lozenges, and breath and nasal sprays, to name a few. It is also used in topical anti-infective products and as a pharmaceutical preservative.

https://www.acs.org/molecule-of-the-week/archive/c/cetylpyridinium-chloride.html