Pine needle tea is an low-altitude pine tree leaves, Taiwan White Pine, under 400-Meter sea level in the tropical region. Each tea bag can serve more than one 300-500ml hot water brew (the package is in white FORMOSAN bag).
It has been commonly used to enhance general immunity and longevity for a long history. Recently it has been found by the Japanese to help alleviate side effects from vaccines with its Quercetin. More medical research also identified the benefits of Quercetin:
Health Benefits of Quercetin in Age-related Disease