Leucidal ●
TL;DR. This ingredient is used as a preservative or preservative booster, helping limit microbial growth in water-based personal care formulas. It is most often used in mild, natural-positioned products rather than as a high-strength standalone preservation system.
What does Leucidal do in a cosmetic formula?
This ingredient is used as a preservative or preservative booster, helping limit microbial growth in water-based personal care formulas. It is most often used in mild, natural-positioned products rather than as a high-strength standalone preservation system.
Is Leucidal clean?
From a clean-beauty perspective, it is generally well accepted because it is fermentation-derived, mild, and not a common restricted-list ingredient. The main caveat is performance, since formulators usually need challenge testing and often pair it with other preservation hurdles for robust protection.
Is Leucidal sustainable?
This material is made through fermentation of renewable plant-derived feedstocks, which gives it a favorable sourcing profile. It is expected to be readily biodegradable and does not raise the persistence concerns associated with many synthetic film-formers or silicones.
Is Leucidal COSMOS-approved?
It is generally compatible with COSMOS-natural and COSMOS-organic style formulas when the exact commercial grade and processing aids meet the standard. Its Green Chemistry fit is strong because it uses fermentation, renewable inputs, water-compatible processing, and biodegradable chemistry.
How does Leucidal work chemically?
This ingredient is a complex fermentation filtrate containing antimicrobial peptides, organic acids, and other water-soluble metabolites rather than a single purified molecule. Typical use levels are often about 2 to 4 percent, with best performance in mildly acidic to neutral systems and confirmation by microbial challenge testing.
Last updated 2026-05-15