Faex
What is Faex?
Faex Yeast Extract is a natural ingredient derived from Saccharomyces cerevisiae, commonly known as brewer's or baker's yeast, obtained through autolysis or hydrolysis processes. It is rich in amino acids, peptides, vitamins (especially B-complex), minerals, and beta-glucans, which contribute to its skin-nourishing and protective properties. In skincare, it functions as a skin-conditioning agent, helping to soothe irritation, support skin barrier function, and promote a healthy complexion.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Moisturising
Improves skin hydration and comfort by combining water-binding (humectant) and barrier-supporting (emollient/occlusive) mechanisms to reduce dryness.
Skin protecting
Forms a barrier to protect skin from external irritants.
Humectant
Attracts and holds water in the stratum corneum, boosting hydration and plumpness; commonly used in moisturizers, cleansers, and hair conditioners.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Tonic
Supports a light, toning after-feel—often combining mild astringency, refreshing solvents, and humectants—to prep skin and refine sensory finish.
Soothing
Helps reduce the feeling of discomfort and visible irritation by supporting skin calmness, often through anti-irritant, barrier-supporting, or cooling mechanisms.
Antioxidant
Slows oxidation of oils, fragrances, and sensitive actives to improve shelf life and reduce rancidity or color change; sometimes also supports skin protection from oxidative stress.