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Heartleaf (Houttuynia cordata): what the evidence says

⚡ Quick answer: Heartleaf calms and balances oily, breakout-prone skin. — Evidence grade: Emerging. Heartleaf (Houttuynia cordata, 'eoseongcho') is a trending Korean calming botanical used to support a soothed, balanced look in oily and blemish-prone skin. It contains flavonoids and other compounds with antioxidant and soothing activity in laboratory studies, but high-quality clinical evidence for topical cosmetic use is limited and there is no standard use percentage. Frame its value as comfort and the appearance of calmer, less reactive skin rather than as a treatment for breakouts. Generally well tolerated; patch-test reactive skin.

The claim: Heartleaf calms and balances oily, breakout-prone skin.

Emerging evidence

What the research actually shows

Heartleaf (Houttuynia cordata, 'eoseongcho') is a trending Korean calming botanical used to support a soothed, balanced look in oily and blemish-prone skin. It contains flavonoids and other compounds with antioxidant and soothing activity in laboratory studies, but high-quality clinical evidence for topical cosmetic use is limited and there is no standard use percentage. Frame its value as comfort and the appearance of calmer, less reactive skin rather than as a treatment for breakouts. Generally well tolerated; patch-test reactive skin.

Sources

Related K-beauty guides

🌱 Heartleaf (Houttuynia)

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed 2026-06-21.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.