Houttuynia Cordata Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Houttuynia Cordata Extract?

Houttuynia Cordata Extract comes from the leaves and stems of Houttuynia cordata, a heart-shaped herb that thrives in moist, shady areas across Asia. The plant contains natural flavonoids, polysaccharides and essential oils, all of which give it calming and skin-loving properties. In traditional Asian skincare routines crushed fresh leaves were once applied directly to the skin to soothe redness. Modern cosmetics started using the extract in the early 2000s when Korean beauty brands looked to age-old herbs for gentle yet effective ingredients.

To make the extract, freshly harvested plant parts are washed, ground then soaked in a mixture of water or a water-glycol solution. The liquid is filtered and often gently heated to remove unwanted microbes. The result is a clear to light brown fluid rich in the plant’s active compounds.

Today you will spot Houttuynia Cordata Extract in sheet masks, lightweight gels, calming toners, moisturizers aimed at sensitive skin and after-sun products. Brands like it because it fits well in water-based formulas and teams up nicely with other botanical extracts.

Houttuynia Cordata Extract’s Cosmetic Benefits/Uses

This extract is prized for its skin conditioning ability. When added to a formula it helps keep the skin surface soft, smooth and well hydrated. By supporting the skin’s natural barrier it can reduce the look of temporary redness and make the complexion feel comfortable after cleansing or exposure to environmental stressors.

Who Can Use Houttuynia Cordata Extract

Houttuynia Cordata Extract suits most skin types, including dry, oily, combination and sensitive skin, because it is water based and lightweight. Very reactive or highly allergic skin should proceed with more caution since botanical extracts can occasionally trigger irritation, but for the majority of users it behaves gently.

The ingredient is plant derived and contains no animal by-products, so it is considered suitable for both vegans and vegetarians. Manufacturers typically process the raw material without animal testing where regulations allow, making it a popular pick for cruelty free formulas.

Current data does not suggest any specific risk for pregnant or breastfeeding women when the extract is applied topically at cosmetic levels. Still, this is not medical advice, and anyone who is pregnant or nursing should ask a healthcare professional before starting a new skincare product to be on the safe side.

Houttuynia Cordata Extract does not increase photosensitivity, so it will not make skin more prone to sunburn. Normal daily sun protection is still important for overall skin health.

Potential Side Effects/Adverse Reactions

Side effects and reactions to topical Houttuynia Cordata Extract can vary from person to person. The list below covers potential issues only and most users will not experience any of them when the ingredient is correctly formulated in a product.

  • Mild redness or stinging in very sensitive skin
  • Allergic contact dermatitis in individuals allergic to Houttuynia cordata or related plants
  • Rare flushing or warmth when used with other strong actives such as exfoliating acids

If any unexpected irritation or discomfort occurs, discontinue use and consult a medical professional.

Comedogenic Rating

Rating: 0 out of 5. Houttuynia Cordata Extract is primarily water based, contains no heavy oils or waxes and absorbs quickly without leaving residue, so it does not clog pores. This makes it generally suitable for those who are prone to acne or breakouts. Because it is usually paired with lightweight humectants, even oily and congested skin types should tolerate it well. If a formula with this extract still causes blemishes the culprit is likely another ingredient such as thick emollients or silicones, not the extract itself.

Summary

Houttuynia Cordata Extract conditions skin by delivering calming flavonoids and water binding polysaccharides that help keep the surface soft, hydrated and comfortable. It supports the skin barrier so redness looks less obvious and post cleansing tightness is reduced. Its gentle nature has earned it a steady spot in K-beauty toners, sheet masks and light moisturizers and its popularity is spreading to Western brands looking for soothing botanicals. Overall it is viewed as a safe ingredient with a very low risk of irritation or pore blockage. As with any new skincare product it is wise to patch test first to make sure your skin agrees with the complete formula.

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