Saligin PP (Propyl Paraben USP 29) is a preservative made of Propyl Paraben that is highly effective in preventing the growth of fungi and bacteria. This white crystalline powder is very slightly soluble in water and freely soluble in alcohol and in methanol. It can be used in leave-on and rinse-off products like shampoos, creams, lotions, face wash, and shower gels.

Saligin PP（Propyl Paraben USP 29）是一种由对羟基苯甲酸丙酯制成的防腐剂，对防止真菌和细菌的生长非常有效。这种白色结晶粉末微溶于水，易溶于酒精和甲醇。它可以用于洗发水，面霜，洗液，洗面奶和沐浴露等免洗和冲洗产品。