Magnolia bark

Silver· human data

Also known as: Honokiol, Magnolol

A traditional stress and sleep herb (honokiol/magnolol) with mostly early evidence.

Magnolia bark contains honokiol and magnolol, compounds studied for calming, anti-stress and sleep effects, often appearing in cortisol- and sleep-support blends.

Much of the mechanistic work is preclinical, with limited human trials — some in combination products for menopausal sleep and stress. It is a plausible but under-evidenced option; effects and product quality vary.

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Written and reviewed by Mathew Beale, MSc Biotechnology, University of Reading.

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