Botanical Support For The Overworked. Planetary Herbals Rehmannia Endurance™ is based on the classic Chinese tonifier Rehmannia Six: Liu Wei Di Hang Wan one of the most strengthening tonics of Chinese herbalism. Traditionally it was used for those who are tired and run down from overwork and inadequate rest due to a fast-paced lifestyle.
"Supposed to be energizing, but had the opposite effect on me. This product actually made me so sleepy that I had trouble staying awake after taking it. I took it at night at 9PM, and I went to sleep 10PM, but was super drowsy until 2PM the following day. Too much downtime, and with only one tablet! As soon as I quit it after two consecutive nights/days of this experience, my energy returned full forrce, so apparently my body chemistry did not agree with this product. FYI It contains wheat/gluten"