All preservative have active pharmaceutical ingredients

This statement is not accurate. Preservatives are substances that are added to products, such as food, cosmetics, and pharmaceuticals, to prevent or inhibit the growth of microorganisms and extend the shelf life of the product. While some preservatives may contain active pharmaceutical ingredients (APIs), not all of them do.

Preservatives can be either natural or synthetic compounds that work by various mechanisms, such as inhibiting the growth of bacteria, fungi, or molds. Examples of common preservatives include sodium benzoate, potassium sorbate, calcium propionate, and benzoic acid.

APIs, on the other hand, are the active components in pharmaceutical drugs that produce a therapeutic effect on the body. They are specifically chosen and formulated to treat or prevent a particular disease or condition. APIs play a crucial role in pharmaceutical products, but they are not necessarily present in all preservatives.