Cordyceps is a rare fungus found in the forest and alpine regions of Asia, especially in Vietnam, China, Korea, and Japan. It is also known as "straw mushroom" or "shiitake mushroom". Mushrooms are shaped like a dark brown bag, about 5-10 cm high, and 3-5 cm in diameter. Cordyceps grows in the nests of birds, often rare birds such as woodpeckers, sparrows, and phoenixes. Mushrooms have a bitter taste and characteristic odor. Cordyceps has high nutritional and medical value and is used in traditional Asian medicine as a medicine. It is said to promote health, boost immunity, reduce stress and improve vitality. In addition, Cordyceps is also used in skin beautification, anti-aging and increasing the body's resistance.