Title: Magnolia Bark: Benefits, Usage, and Side Effects
Headings: Magnolia Bark: Benefits, Usage, and Side Effects
Nutrition
Magnolia Bark: Benefits, Usage, and Side Effects
Potential benefits
May protect against the effects of oxidative stress and inflammation
May have anticancer properties
May relieve stress and anxiety
May improve sleep
May improve symptoms of menopause
How to take magnolia bark
Does magnolia bark have side effects?
The bottom line

Content: However, the supplement used in these studies contained compounds other than magnolia bark. Therefore, the effects cannot be credited to the tree bark alone. Lastly, a study in rodents noted that a mixture of honokiol and magnolol caused antidepressant-like effects, including improvements in serotonin levels in the brain and reductions in corticosterone levels in the blood ( 26
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). Corticosterone and serotonin each play a role in regulating anxiety, mood, and depression. May improve sleep
The polyphenols in magnolia bark — honokiol and magnolol — have been found to help induce and improve sleep. Therefore, magnolia bark could be used as a remedy for insomnia or simply to promote better sleep overall. A study in mice found a magnolol dose of 2.3–0.9 mg per pound (5–25 mg per kg) of body weight significantly decreased sleep latency, or the amount of time it takes to fall asleep ( 27
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). The same study observed that the same dose increased REM (rapid eye movement) and non-REM sleep. Additionally, the magnolol appeared to increase the number of times the mice woke up during sleep but decrease the length of time they were awake. A second study in mice observed similar outcomes after administering honokiol, which also decreased the amount of time it took the mice to fall asleep and transition into non-REM sleep ( 28
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).