Saccharomyces/Poria Cocos Sclerotium Ferment Extract — INCI reference

What it is

This ingredient is produced by fermenting the dried sclerotium of Poria cocos (also known as Fu Ling or Wolfiporia extensa) with Saccharomyces yeast. The fermentation process enzymatically converts the fungal substrate and releases or enriches bioactive compounds including polysaccharides (notably beta-glucans), triterpenoids, peptides, and organic acids. Beta-glucans, which form the predominant polysaccharide fraction of the Poria cocos sclerotium, act as humectants and barrier-supportive agents. The fermented extract is used in toners, serums, moisturizers, and masks to help support skin hydration, improve skin texture, and provide antioxidant protection against environmental stressors. The ingredient belongs to the class of postbiotic ferment ingredients, where yeast-mediated fermentation enhances the bioavailability and activity of the source material's functional compounds.

Safety & warnings

No significant safety concerns have been identified for this ingredient in typical cosmetic use concentrations. Research on Saccharomyces ferment filtrates and Poria cocos extracts indicates good skin tolerability. Individuals with known sensitivities to yeast or fungal-derived ingredients should exercise caution. No comedogenicity, phototoxicity, or significant allergen concerns have been noted in available literature.

Origin & sourcing

Derived from the sclerotium (underground storage body) of the medicinal fungus Poria cocos (syn. Wolfiporia extensa), which grows parasitically on the roots of pine trees and is widely cultivated in China on Pinus massoniana and Pinus tabuliformis. The sclerotium is fermented using Saccharomyces yeast (sugar yeasts) through a biotechnology process involving enzymatic conversion, producing a ferment and extract of the combined material.

History

Poria cocos has been documented in Chinese medicine since the 16th century, recorded by Li Shizhen in the Compendium of Materia Medica (Bencao Gangmu) for uses including promoting urination, invigorating the spleen, and calming the mind. The sclerotium was also consumed by some Native American peoples. The specific fermented combination ingredient (Saccharomyces/Poria Cocos Sclerotium Ferment Extract) represents a more recent development in cosmetic biotechnology, applying yeast fermentation to enhance delivery of the fungal bioactives.

Questions everyone asks

What does the fermentation step add compared to a plain Poria cocos extract?

Fermenting the sclerotium with Saccharomyces yeast can break down complex polysaccharides into smaller, more bioavailable fragments and enrich the extract with additional metabolites such as peptides, beta-glucans, and organic acids produced during fermentation.

What are the main skin benefits of this ingredient?

The ingredient provides antioxidant protection against oxidative stress, helps support the skin barrier through beta-glucan and polysaccharide content, and offers mild skin-conditioning and emollient effects.

Is this ingredient suitable for sensitive skin?

In general, ferment-based ingredients from Poria cocos are considered gentle and are used in formulas targeting sensitive or sensitive-prone skin. No common allergens or irritants are associated with this ingredient, though anyone with yeast or mold sensitivities should check with a dermatologist be

Which product types typically contain this ingredient?

It is found in lightweight skincare products such as toners, serums, sheet masks, and daily moisturizers, particularly those marketed for pore refining, brightening, or hydration, often in Asian skincare formulations drawing on traditional herbal medicine ingredients.

Sources & references

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