Using Mild Preserved Eco™ as a Sole Preservative

Yes, Mild Preserved Eco™ is designed to function as a complete preservative system on its own in cosmetic formulations. It is a blend of Ethylhexylglycerin and Propanediol and is not classified as a traditional preservative by regulatory bodies, which allows products using it to claim "preservative-free".

The recommended usage rate for Mild Preserved Eco™ in general cosmetic formulas is typically 1.0-1.5%. For formulas that may be more challenging to preserve, such as those containing a high percentage of natural ingredients or prone to external contamination, a usage rate of up to 2.0% is recommended.

However, it is crucially important to perform a challenge test on your specific formula, especially since it contains an active ingredient like ActiveRelease Retinal™ and other components. A challenge test is the only way to definitively confirm that Mild Preserved Eco™, or any preservative system, provides adequate broad-spectrum protection against microbial growth (bacteria, yeast, and mold) throughout the product's intended shelf life and under typical consumer use conditions. This is a standard and necessary step before producing and distributing any cosmetic product.