Supplement Scholar
Compound

Honokiol

Buy on Amazon ↗

Affiliate link: we may earn a commission at no extra cost to you. Disclosures

Honokiol. Active magnolia compound.

How it works. GABA-A modulator; SIRT3 activator.

What the research supports. 1 graded claims. Strongest: Anxiolytic (moderate).

How much to take. Typical dose: 250 mg.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with Magnesium glycinate, L-theanine, NAD+ precursor (NMN or NR).

Common forms. Available as Capsule or softgel, Powder, Sublingual or buccal, Liposomal liquid.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Honokiol. Anecdotes are not medical advice.

Honokiol. Active magnolia compound.

Molecular structureC18H18O2 · 266.3 g/mol

What it is

Active magnolia compound.

Food sources

Endogenously produced or biosynthesized moleculeStandardized pharmaceutical- or food-grade supplementCombined with cofactors that improve absorption or activity

Goals

Mood & AnxietySleep & RecoveryHealthy Aging

How it works

GABA-A modulator; SIRT3 activator.

Pathways

  • GABA-A modulator
  • SIRT3 activator

Effects

  • +Anxiolytic supports

What the research supports

Anxiolyticmoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
250 mg
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodWith a meal containing fat for fat-soluble compounds; otherwise either.
Best formMost evidence is based on the capsule or softgel form.
Shop Honokiol on Amazon ↗

As an Amazon Associate I earn from qualifying purchases. Look for USP, NSF or Informed Sport seals before you buy.

Side effects & interactions

Common side effects

  • Drowsiness

Medication interactions

Prescription medications (general)minor

Always disclose Honokiol use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • Magnesium glycinateComplementary GABAergic calming and improved sleep architecture.
  • L-theanineReduces sleep latency without sedation.
  • NAD+ precursor (NMN or NR)Complementary mitochondrial and sirtuin support.

Common forms

  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Key studies

8 studies cited in total.

PubMed: Honokiol — Anxiolytic ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Honokiol and "Anxiolytic". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Honokiol — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Honokiol and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Honokiol — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Honokiol and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Discussion

Loading discussion…