Safe Preservatives for Water-Based Serums and Gels

For clear water-based serums and gel formulations, especially when aiming for high safety and mildness, 1,2-Hexanediol is an excellent choice.

1,2-Hexanediol is not classified as a traditional preservative but acts as a powerful preservative booster. This means it significantly enhances the effectiveness of other preservatives, allowing you to use them at lower concentrations. Importantly, it also possesses its own antimicrobial properties, helping to control the growth of bacteria and fungi in the formula. This dual action makes it possible to formulate products with very low levels of traditional preservatives, or even achieve "preservative-free" claims, contributing to a milder and potentially safer product.

It is water-soluble and suitable for clear formulations. It also offers additional benefits such as helping to hydrate the skin and improving the penetration of other active ingredients.

Important Note: Regardless of the preservative system used, it is crucial to perform a challenge test on your final formulation before selling to ensure its effectiveness and safety throughout its shelf life.