Aspergillus … Ferment Filtrate

This ingredient is a fermented filtrate derived from apples, rice, and Aspergillus (a type of fungus used in fermentation). The fermentation process breaks down plant cell walls and creates smaller molecular compounds that can penetrate the skin more readily than their unfermented counterparts.As a humectant, it works by attracting water molecules from the environment and deeper skin layers, helping to bind moisture within the outer layers of the epidermis. This makes it useful in formulations designed to improve hydration.

Humectants are hygroscopic molecules that attract and bind water. This fermented filtrate acts on the principle of drawing moisture from the dermis into the epidermis, and from the air if humidity is present. The fermentation process creates smaller, more bioavailable compounds that may enhance penetration compared to whole plant material.By increasing water content in the outer skin layers, the ingredient can plump the skin and support a smoother appearance, whilst also contributing to overall skin hydration maintenance when used regularly.

This ingredient is typically found in serums, essences, and hydrating toners where its humectant properties can be maximised. Apply to damp skin to enhance its moisture-binding effect, or layer under an occlusive product to seal in hydration. It works well alongside other humectants and hydrating ingredients.

Generally well-tolerated by most skin types. Those with sensitivities to fermented ingredients or yeast should patch test first, as fermentation can trigger reactions in sensitive individuals.