Auricularia Polytricha Fruiting Body Extract

Auricularia polytricha, commonly known as wood ear fungus, is a polysaccharide-rich ingredient derived from the fruiting body of this edible mushroom. When processed into an extract for skincare, it becomes a humectant—a substance that draws moisture into the skin and helps it bind there.In formulations, this extract serves a dual purpose: it hydrates the skin whilst also providing conditioning properties that support the skin's protective barrier function. It's particularly valued in formulas targeting dryness and dehydration.

The extract's high polysaccharide content allows it to absorb and bind water molecules, drawing them into the outer layers of the skin. This hydrating action is particularly effective when applied to damp skin, as it can hold atmospheric moisture and help prevent transepidermal water loss.Beyond hydration, the conditioning compounds in the extract are thought to support the skin's natural lipid barrier, helping it retain moisture more effectively over time.

This ingredient works best when applied to clean, slightly damp skin, allowing it to lock in moisture. It pairs well with occlusive ingredients like oils or ceramides, which seal in the hydration provided by the extract. It can be used daily as part of a moisturising routine, typically found in serums, essences, or moisturisers.

Generally well-tolerated across most skin types. Those with mushroom or fungal sensitivities should patch-test first, though allergic reactions are uncommon.