Thanks for reaching out regarding our use of potassium sorbate! We appreciate the opportunity to explain a little more about why we use potassium sorbate in our products.
A lot goes into formulating a product and choosing which ingredients will be the best fit for the formula. There are many different factors to take into consideration when formulating a product that can impact the overall consistency, flavor and even shelf stability of the product. Potassium sorbate is incredibly important when it comes to making a product that will remain safe for the consumer once it is opened, as it is a preservative that helps to prevent spoilage.
Potassium sorbate is a food-grade preservative, used effectively for decades and is generally recognized as safe (GRAS) by the Food and Drug Administration (FDA). Many products that use it — ranging from canned foods to dietary supplements to topical personal care products — use it for it's antimicrobial preservative properties. In other words, it prevents the growth of microorganisms that could otherwise impact the safety of the product, extending the shelf life and keeping it safe from microorganisms.
Potassium sorbate is a chemical compound that naturally occurs in some fruits and berries (like the berries of mountain ash). As an ingredient in food goods (including supplements), it is produced in a lab setting, creating a “nature identical” chemical (that is, chemically equivalent to the molecule found in nature).
Ultimately, the choices you make around what ingredients you and your family can and should consume is up to you. Each of our product web pages contains the Supplement Facts Panel and other ingredient lists disclosed for our customers' review. We also always recommend speaking with your physician or healthcare professional when considering your options for supplementing, too, as they can help guide your decisions around whether or not specific ingredients are right for you and your family.