Magnolia biondii

botanical

What is it

Magnolia biondii is a Chinese magnolia species whose flower buds (Xin Yi Hua in Chinese medicine) are used traditionally for nasal and sinus complaints, particularly congestion and sinusitis.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Nasal congestion and sinusitis (traditional use)

Mixed

Long traditional use in TCM. Some clinical evidence supports use within multi-herb formulations. Isolated Magnolia biondii trials are limited.

How it works

The flower buds contain essential oils (citral, eugenol, methyl eugenol), lignans, and alkaloids. Laboratory studies have shown anti-inflammatory effects on respiratory tissues and decongestant activity. Traditional Chinese medicine includes Xin Yi Hua in many nasal congestion formulations. Modern controlled human trials are limited.

Dosage

Traditional decoctions use 3-9 g of dried flower buds daily. Extracts vary by product.

When and how to take it

Traditional decoctions are taken two to three times daily during acute symptoms. Follow product label for extracts.

2 commercial forms

Dried flower bud

Essential oils and lignans extracted in hot water

Traditional preparation.

Standardized extract

Concentrated active compounds

Used in TCM patent formulas.

Safety

Generally well-tolerated short-term in traditional preparations. Some essential oil components (methyl eugenol) have raised theoretical concerns at very high concentrations. Standard culinary or short-term use is generally considered safe.

Who should be cautious

Avoid in pregnancy. People with sensitive respiratory systems should monitor for irritation. Limited data in breastfeeding.

Interactions

Limited specific data. Possible interactions with sedatives or antihypertensives based on traditional pharmacology of related Magnolia species.

Frequently asked questions

Is it the same as Magnolia officinalis bark?⌄

No. M. officinalis bark (Hou Po) contains magnolol and is used for different purposes (anxiety, digestion). Xin Yi Hua is the flower bud and is used for nasal congestion.

Can I use it for chronic sinus issues?⌄

Long-term use should be under qualified TCM or medical guidance. Address chronic sinus issues with a clinician.

References

  • Magnolia biondii on Wikidata — Wikidata link
  • Magnolia biondii on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link
  • Research on Magnolia biondii (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.