Phellodendron (Amur Cork Tree Bark) and stress

What 2 graded rows on phellodendron (amur cork tree bark) agree on for stress, and where they differ. Counted side by side, never averaged.

Consensus finder Rows from the Phellodendron (Amur Cork Tree Bark) page, reviewed Oct 21, 2026 How it decides

What the rows agree on

Each block and row is one graded row from the Phellodendron (Amur Cork Tree Bark) page, with its PubMed record.

Supplement

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2 rows · 96 people

Split. 1 row found an improvement and 1 had mixed results.

Mixed

Improved

Each block is one evidence row, sized by how many people it enrolled, with its grade inside. Outlined: mixed results.

From the rows

The best-graded row, grade D, is a randomized trial of 56 people (2013) and found an improvement.

The rows run from 40 to 56 people, published from 2008 to 2013: 2 single studies.

1 improved · 1 mixed

Grade DSalivary cortisol and mood in moderately stressed adults · Improved
RCT · n 56 · 2013 · Adults screened for moderate stress (35 men, 21 women)
Not stated in the abstract · 4 weeks
Salivary cortisol exposure was 18% lower than with placebo; overall stress (-11%), tension, depression, anger, fatigue and confusion scores were lower, and global mood and vigour higher.
Row on the Phellodendron (Amur Cork Tree Bark) page · PubMed 23924268 (opens PubMed)
Grade DAnxiety, cortisol and sleep in stressed women · Mixed
Pilot RCT · n 40 · 2008 · Overweight premenopausal women aged 20 to 50 who eat in response to stress (40 intent-to-treat, 26 completed)
250 mg three times daily (750 mg/day) · 6 weeks
State (temporary) anxiety fell vs placebo; trait anxiety, salivary cortisol and amylase, appetite, body measures and sleep quality did not differ. No significant adverse events.
Row on the Phellodendron (Amur Cork Tree Bark) page · PubMed 18426577 (opens PubMed)