Reishi mushroom is the name for one form of the mushroom Ganoderma lucidum, and its close relative Ganoderma tsugae. Ganoderma lucidum enjoys special veneration in Asia, where it has been used as a medicinal mushroom in traditional Chinese medicine for more than 4, 000 years, making it one of the oldest mushrooms known to have been used in medicine. 
The word lingzhi, in Chinese, means "herb of spiritual potency" and has also been described as "mushroom of immortality". Because of its presumed health benefits and apparent absence of side-effects, it has attained a reputation in the East as the ultimate herbal substance. Lingzhi is listed in the American Herbal Pharmacopoeia and Therapeutic Compendium. 

The Reishi Mushroom Extract used in dietary supplements is derived from the whole mushroom (the fruiting bodies of Ganodema fungi). The red Reishi Mushroom is better than the black Reishi Mushroom, and the former taste more bitter than the latter.
Ganoderma Lucidum Spore Extract Powder is extract from the natural plant of Ganoderma lucidum which is Brown Powder. After the special extract processing, we got the 20%-50% Polysccharide extract. They are powder form with good color. It's mainly used for Medicine, cosmetic, food addictive area as raw materials. 
 

Reishi Mushroomcontains a high concentration of beta-glucan and Granoderic acids (Triterpenes), compounds which has been shown to stimulate immune system and anti-tumor: 

1. Up-regulate the immune system (Immunomodulatory and immunotherapeutic activities). 
2. Anti-cancer, anti-tumor, and anti-neoplastic effects. 
3. Prevent cancer metastasis. 
4. Anti-bacterial and anti-viral activities. 
5. Beneficial effect on Lowering Blood Pressure(via inhibition of angiotensin-converting enzyme). 
6. Beneficial effect on Lowering Blood Sugar. 
7. Beneficial effect on Lowering Cholesterol. 
8. Protective effects against liver injury by viruses and other toxic agents. 
9. Weight loss aid.