Scientists have isolated and studied tiny capsule-like particles called extracellular vesicles from the oyster mushroom Pleurotus eryngii. These vesicles, which are naturally produced by the mushroom, contain beneficial compounds like antioxidants that help protect cells from damage. The researchers found that vesicles from mushroom mycelium (the root-like part) were of higher quality and had stronger antioxidant effects than those from the fruiting body. These findings suggest that mushroom-derived vesicles could potentially be developed into health supplements or therapeutic treatments.