I'm doing some market research on the elusive hyakunen-cha tea. It's huge in Japan but hard to come by in the States.
From their box: “Hyakunen-Cha Tea is an authentic reproduction of an original recipe from the 12th century. The count doctor from the Fujiwara Dynasty first created this tea based on the five primary elements and flavors contained in the Pharmacology Chinese Medicine. Hyakunen contains 27 kinds of herbs, mushrooms, and seaweeds which passed down from generation to generation yet improving with time.”
It comes in three colors: blue, red and black with 24, 27 and 34 herbs respectively.
Apparently it's a god-send for acne/skin issues and contains barely any caffeine. Attached is a photo of their "blue" box with 24 herbs.
The red: “Those ingredients of the red box may help prevent facial lines (wrinkling), freckles, age spots, dry mouth, diuretic, sore limbs caused by arthritis/gout, muscle pain and chronic aches. It may also aid coughs secondary to asthma, allergies, weight-control and diabetes, the tea is useful for stabilizing blood sugar levels” (Beauty Beyond Skin).
The black: “With the addition of ginseng and Ling-Zhi, the black package tea with its thirty herbs, mushrooms, and seaweed helps with weak constitution, may improve or strengthen the immune system, and increase energy levels. It is also thought to help with the recovery for women from giving birth. It may even have anti-carcinogenic properties.” (Beauty Beyond Skin)