Natural preservatives are naturally occurring substances that prevent microbial contamination of cosmetic products. Since we don’t live in a sterile environment, microorganisms can enter a cosmetic product during its everyday use and cause it to go bad.
Every time we dip fingers into a jar, every time a product is exposed to air (by opening a jar, by pressing a lotion pump or a spray head), microorganisms can get into our product. A small number of microorganisms can even be present in the product right from the start, since they may have been right there in the raw materials.
So we use preservatives to prevent microbial growth and proliferation in order to keep our product safe over a longer period of time.
