“…Eighteen clinical studies were conducted on the fixed combinations of R. rosea with green tea [ 49 , 50 , 51 , 52 , 53 ], Eleutherococcus, and Schisandra [ 54 , 55 , 56 , 57 ], Eleutherococcus, Schisandra, and Leuzea [ 56 ], caffeine [ 58 , 59 ], Cordyceps [ 60 , 61 , 62 , 63 ], Ginkgo [ 64 ], black cohosh [ 65 ], Saffron [ 66 ], L-carnosine [ 67 ], Eleutherococcus, and Glycyrrhiza [ 68 ].…”