Tremella mushroom, also known as "snow fungus," is a type of edible fungus that is native to Asia and widely cultivated in China, Japan, and Korea. It is a popular ingredient in traditional Chinese medicine and cuisine. The mushroom has a delicate, spongy texture and a slightly sweet, smell.

Tremella mushroom is rich in polysaccharides, which are complex sugars with a high water-binding capacity and are thought to help keep the skin hydrated and moisturized. Some people also claim that tremella mushrooms can help to reduce the appearance of fine lines and wrinkles and improve the overall appearance of the skin by plumping and firming it. In traditional Chinese medicine, tremella mushroom is often used to improve the appearance of the skin and give it a brighter, more radiant appearance.

Tremella mushroom is rich in polysaccharides, specifically a type called beta-glucans. Beta-glucans are complex sugars that are found in the cell walls of certain fungi, including tremella mushrooms. Beta-glucans have a number of potential health benefits, including immune-boosting effects and the ability to improve skin health. In terms of skin health, beta-glucans are thought to have moisturizing, anti-aging, and brightening effects. They may help to keep the skin hydrated and moisturized, stimulate the production of collagen to reduce the appearance of fine lines and wrinkles, and give the skin a more radiant appearance. While the scientific evidence supporting these claims is limited, beta-glucans are generally considered safe and are often used as ingredients in skincare products.