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Active Micro Technologies (AMT) has developed a full line of products derived from naturally occurring compounds that provide broad spectrum antimicrobial protection. As a result, these novel natural antimicrobials can be used as consumer-friendly alternatives to synthetic preservatives in a wide range of cosmetic applications.

However, not all natural antimicrobials are suitable for anhydrous applications such as pressed powders. These specific types of cosmetic products typically require water-free preservatives capable of providing broad antimicrobial protection. One of the most commonly used preservatives in pressed powders is ethylparaben. Even though being an effective product, this synthetic preservative is one of the materials that are becoming more strictly regulated while simultaneously losing consumer preference. FSS Leucidal® Liquid PT is a probiotic-based ingredient created by the fermentation of Lactobacillus in a defined growth medium and at specific conditions. Lactobacillus is one of the species of microorganisms used to produce fermented products such as sauerkraut and kimchi, a Korean dietary staple, from cabbage.

The ability of FSS Leucidal® Liquid PT to act as a broad-spectrum antimicrobial surface treatment is enhanced by the presence of water-soluble undecylenates generated by the Lactobacillus during the fermentation process. Undecylenic acid is an (oil soluble) unsaturated fatty acid typically produced by thermal conversion of ricinoleic acid derived from castor oil. Castor oil is a 100% vegetable, biodegradable, natural and renewable resource. In nature, trace quantities of undecylenic acid are also found in human tears and hair.