Why don you use Paraben or Phenoxyethanol as a preservative?
A1. The balances of lipophilicity and hydrophilicity (called oil-water distribution coefficient) of the preservatives, such as Paraben and Phenoxyethanol, make it easily absorbed through the skin. In addition, since they are small-molecules, they can easily pass through the protective barrier of the cornified layer to be absorbed through skin. It is observed that the absorbed preservatives travel from blood capillaries to the liver and the gallbladder, and then are excreted as excrement, after passing through the small intestine, or are absorbed by the small intestine and excreted as urine from the kidney. You may think that there should be no problem as long as the preservative is excreted even if it is absorbed. However, from experiments on animals, a possibility of Paraben being an endocrine disputer is mentioned. This company’s policy is that since cosmetics are a daily product, we try not to use any ingredients that we do not want to absorb through our skin. Therefore, we produce
