Efficacy and Safety of Cordyceps Sinensis Mycelium Culture Extract(Paecilomyces Hepiali, CBG-CS-2) on Promotion of Immunity

Inclusion Criteria: * Males and females 20-80 years old * Who had suffered more than twice Upper respiratory infection\* disorder or common cold causing URI * Able to give informed consent Exclusion Criteria: * WBC concentration below 3000 ㎕ * Subjects vaccinated against influenza within the last 6 months prior to the study * Subjects with Upper respiratory infection at screening visit * Subjects with BMI \< 18.5 kg/m2 at screening visit * Allergic or hypersensitive to any of the ingredients in the test products * Diagnosed of gastrointestinal disease such as Immune-related diseases, severe hepatic, renal failure, and diabetes * History of reaction to any of the test products or of gastrointestinal diseases such as Crohn's disease or gastrointestinal surgery * History of alcohol or substance abuse * Participation in any other clinical trials within past 2 months * Laboratory test, medical or psychological conditions deemed by the investigators to interfere with successful participation in the study * Pregnant or lactating women etc.