Is there any kind of mold that might be good for your skin?

In general, such extracts are not colonized by active-form fungi, even if they originate from the fungi kingdom. Among others, enhancing the skin’s hydration and barrier functionalities, providing a brightening effect alongside the potential to diminish dark spots, and delivering antioxidant and anti-inflammatory properties, are recognized benefits.

Generally, such extracts do not contain active colonized or spored forms of fungi. In the field of skin care, several kinds of fungi are sources of bioactive extracts or compounds, such as, for skincare masks, polysaccharides (mainly beta-glucans) from Tremella fuciformis, triterpenes, polysaccharides, antioxidant-rich constituents, vitamin D2 and skin-beneficial trace minerals such as copper and selenium from Ganoderma lucidum, polyphenols and cordycepin from Cordyceps sinensis, and Beta-glucans and kojic acid from the Shiitake mushroom (Lentinula edodes) - some studies indicate that L. edodes extract is a potential therapeutic candidate for treating patients with atopic dermatitis.

Concluding, living active fungi are not to be applied on the skin, but some purified extracts from them can and are being used in skin care.

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Sometimes cosmetic and dermatological manufacturers use extracts from particular fungi (mushrooms, for instance) in their formulations due to their believed anti-inflammation, antioxidant, and moisturization effects. Such extracts go through a thorough purification process followed by safety evaluations.