Monograph
Polygala Tenuifolia
Polygala tenuifolia (Chinese name: yuan zhi, 远志) is a perennial herb whose root has been used in traditional Chinese medicine for over two thousand years. Classical TCM indications focused on insomnia, restlessness, palpitations, cognitive…
By Kristopher Crawford
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30 May 2026
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4 min read
Polygala tenuifolia (Chinese name: yuan zhi, 远志) is a perennial herb whose root has been used in traditional Chinese medicine for over two thousand years. Classical TCM indications focused on insomnia, restlessness, palpitations, cognitive…
In the full monograph
- What it is, and how it works
- What the evidence shows — randomized trials, observational data, animal studies, graded and cited
- Dose, form, and timing
- What to expect, and how soon
- Who should be careful, and what to check first
- The verdict
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