There are various ingredients used within each formulation that serve to preserve each product from unacceptable levels of various forms of yeast, molds and bacteria as well as reduce the rate of oxidation which is a natural process that occurs over time to due exposure to light, heat and oxygen.
While most of our preservation ingredients are 100% natural, we do supplement our formulations with a complementary combination of food-grade synthetic preservatives in order to ensure protection of the user.