Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate

Pseudozyma Epicola/Argania Spinosa Kernel Oil Ferment Filtrate is a processed ingredient derived from argan kernel oil that has undergone fermentation using Pseudozyma Epicola, a naturally occurring yeast. The fermentation process breaks down the oil into smaller molecular components and generates bioactive compounds that may enhance its conditioning properties.In skincare and haircare formulations, this ingredient functions primarily as a skin and hair conditioner, helping to soften and smooth the skin barrier or hair fibre. The fermentation step differentiates it from standard argan oil b…

The fermentation process breaks down triglycerides and other lipid structures in argan oil, potentially creating smaller, more permeable molecules. This can improve penetration into the stratum corneum (outer skin layer) and enhance the conditioning effect without leaving an overly heavy residue.Once applied, the oil components form an occlusive layer that reduces transepidermal water loss (TEWL), supporting hydration. The bioactive compounds generated or liberated during fermentation may also provide mild antioxidant support, though evidence specific to this fermented form remains limited.

This ingredient is typically used in leave-on formulations such as serums, moisturisers, and conditioners. A little goes a long way due to its occlusive nature; start with small amounts and adjust based on how your skin responds. It works well in layering routines applied to damp skin to lock in hydration, and pairs well with lighter, water-based actives applied beforehand.

Generally well-tolerated across skin types. Those with nut allergies should note argan originates from the argan tree and may warrant caution, though the fermentation and filtration process removes many allergenic proteins.