Mushroom extracts have been researched in multiple animal and human studies for their effects. These benefits include: prevention of senescence in UVB-induced human keratinocytes, improvement in wound healing and angiogenesis, inhibition of melanin formation, augmentation of lipogenesis, enhancement of collagen production, reduction in reactive oxygen species, suppression of an inflammatory response, and attenuation of UV-induced immunosuppression. When ingested, mushroom extracts have also been used to show anti-allergenic activity in patients with atopic dermatitis, presumably due to the attenuation of the Th1 and Th2 responses and reduction in mast cell populations.
Mushrooms are the bioactive fruiting bodies of diverse fungi, the extracts of which have been shown to have various medicinal, nutritional and pharmacological effects. The effects of mushroom extracts may be species-specific; thus, a diverse set of effects and benefits have been reported.
Mushroom extracts are likely safe for all skin types and tones based on available data. However, there are reports of anaphylaxis to mushrooms, though these are usually from ingestion or inhalation. Some ex vivo studies do show that mushroom extracts are safe for use in cosmeceuticals for use on human skin. A randomized controlled trial showed that creams with mushroom extract were well-tolerated and efficacious in the study population of 20 volunteers with sensitive skin.
There is minimal data on contraindications for the topical application of mushroom extracts. Although rare, patients with an allergy to mushrooms, their components or their byproducts, like extracts, should avoid use of products containing mushrooms.
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Fung SY, Yap HY, Ng ST, Tan CS. In Vitro Inhibition of Melanin Formation and Enhancement of Collagen Production by a Mushroom Sclerotial Water Extract from the Tiger Milk Mushroom, Lignosus rhinocerus (Agaricomycetes), with No Skin and Eye Irritation. Int J Med Mushrooms. 2022;24(5):19-32.
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Nagao M, Sato T, Akimoto N, Kato Y, Takahashi M, Ito A. Augmentation of sebaceous lipogenesis by an ethanol extract of Grifola frondosa (Maitake mushroom) in hamsters in vivo and in vitro. Exp Dermatol. 2009;18(8):730-733.
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Shiu PH, Li J, Zheng C, et al. Amauroderma rugosum Extract Suppresses Inflammatory Responses in Tumor Necrosis Factor Alpha/Interferon Gamma-Induced HaCaT Keratinocytes. Molecules. 2022;27(19):6533. Published 2022 Oct 3.
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Ukawa Y, Izumi Y, Ohbuchi T, Takahashi T, Ikemizu S, Kojima Y. Oral administration of the extract from Hatakeshimeji (Lyophyllum decastes sing.) mushroom inhibits the development of atopic dermatitis-like skin lesions in NC/Nga mice. J Nutr Sci Vitaminol (Tokyo). 2007;53(3):293-296.
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