So what are phthalates? They are esters of phthalic acid (an aromatic dicarboxylic acid) used as plasticizers, emulsifiers, and lubricants. They have low water solubility, high oil solubility, and low volatility. They’re found in fragrances, nail polishes, and many other cosmetic ingredients. They are suspected of being endocrine disruptors, that is to say they “interfere…