Is Phellinus Linteus Extract fungal acne safe?
Phellinus Linteus Extract is generally considered safe for fungal-acne-prone skin. Medicinal mushroom polysaccharide extract (β-glucans + polyphenols + melanin); same safe-mushroom class as Ganoderma/Tremella/Lentinus/Cordyceps already in this category - the cosmetic INCI is the water-soluble polysaccharide fraction, not a lipid extract.
Also known as Mesima Mushroom Extract, Sang-Hwang Mushroom, Meshimakobu
Why this verdict
Medicinal mushroom polysaccharide extract (β-glucans + polyphenols + melanin); same safe-mushroom class as Ganoderma/Tremella/Lentinus/Cordyceps already in this category - the cosmetic INCI is the water-soluble polysaccharide fraction, not a lipid extract.
Fungal acne, properly called malassezia folliculitis, is driven by a yeast that feeds on fatty acids in roughly the C11 to C24 range. An ingredient is a concern when it can supply usable fatty acids in that window, and it is generally fine when it cannot. Chain length and ethoxylation can both change the verdict, which is why the chemical family alone does not decide it. See the full trigger list and how we assess ingredients for the reasoning and sources.
Frequently asked questions
Is Phellinus Linteus Extract safe for fungal acne?
Phellinus Linteus Extract is generally considered safe for fungal-acne-prone skin. Medicinal mushroom polysaccharide extract (β-glucans + polyphenols + melanin); same safe-mushroom class as Ganoderma/Tremella/Lentinus/Cordyceps already in this category - the cosmetic INCI is the water-soluble polysaccharide fraction, not a lipid extract. This is informational only and not a diagnosis; suitability varies by person and formulation.
Why is Phellinus Linteus Extract considered fungal-acne safe?
Medicinal mushroom polysaccharide extract (β-glucans + polyphenols + melanin); same safe-mushroom class as Ganoderma/Tremella/Lentinus/Cordyceps already in this category - the cosmetic INCI is the water-soluble polysaccharide fraction, not a lipid extract. Fungal acne (malassezia folliculitis) is driven by ingredients that supply fatty acids in roughly the C11 to C24 range that the yeast can metabolize; Phellinus Linteus Extract is assessed against that mechanism.
Assessed using: INCIDecoder, PMC6572527 (bioactivity review), EWG Skin Deep, SincereSkincare.
This page is informational only and is not medical advice or a diagnosis. Fungal acne can resemble other skin conditions, and ingredient suitability varies by person and by formulation. Verdicts reflect community-reported data and malassezia lipid research, not a guarantee for your skin. Always patch test and consult a qualified clinician.