Supplement analysis backed by scientific evidence · PT

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Limited evidenceImmunity

Honeysuckle Flower (Jin Yin Hua)

One of the most-used herbs in Chinese medicine for colds and inflammation, and one of the most-studied in the laboratory. Human trials of the single herb do not exist.

Evidence last reviewed: August 2026

What the science says

  • Extensively reviewed, clinically untested Limited evidence

    A systematic review of the genus Lonicera covering chemistry and pharmacology catalogued anti-inflammatory, antiviral and antibacterial activities almost entirely from cell and animal experiments, with no controlled trials of the single herb for respiratory infection.

  • Anti-inflammatory effects in animal lung models Limited evidence

    A systematic review of Lonicera japonica in acute lung injury summarised multi-target anti-inflammatory mechanisms demonstrated in rodent models. Animal lung-injury models are a long way from a person with a cold.

Dosage & safety

Studied doseNo supplement dose is established. Traditional decoction use is 6–15 g of dried flower buds per day.
SafetyUsed as a tea in East Asia with a long record of tolerability; gastrointestinal upset is the main complaint. Traditionally avoided in people with cold-type digestive weakness. Not studied in pregnancy or breastfeeding. Note that garden honeysuckle berries from other Lonicera species can be toxic — only the flower buds of L. japonica are the medicinal material.

Scientific references

Where to buy

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