Quality of Life Labs, Purchase, NY, has introduced ImmunoComplex®, an im­mune supporting supplement meant to help maintain healthy immune function. ImmunoComplex is designed as a preventative for use year-round, but is especially appropriate during cold and flu season, according to the company. ImmunoComplex consists of a blend of AHCC (Active Hexose Correlated Compound), astragalus, echinacea and vitamin C.