Murdannia Keisak 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: July 1, 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 Murdannia Keisak Extract?

Murdannia Keisak Extract is a botanical ingredient obtained from the entire Murdannia keisak plant, a small marsh herb in the dayflower family. The plant naturally contains polyphenols, flavonoids, sugars and fatty acids, giving the extract its soothing and conditioning qualities. Traditionally used in parts of East Asia as a calming herb, it caught the attention of cosmetic chemists for its ability to hydrate skin and fend off oxidative damage.

To create the extract growers harvest the aerial parts, clean and dry them then run them through a gentle water or glycerin-based extraction. The resulting liquid is filtered, concentrated and stabilized for use in personal care formulas.

Because of its multitasking profile you will often find Murdannia Keisak Extract in moisturizers, sheet masks, anti-aging serums, soothing gels, after-sun lotions and gentle cleansers.

Murdannia Keisak Extract’s Cosmetic Benefits/Uses

This plant delivers several helpful actions in skin care formulas

  • Antimicrobial: Helps keep products fresher for longer and supports a cleaner skin environment by reducing the growth of common bacteria, fungi and yeast
  • Antioxidant: Neutralizes free radicals produced by UV light and pollution, which can slow the look of premature aging
  • Humectant: Draws water into the upper layers of the skin so it feels plumper and stays hydrated through the day
  • Emollient: Softens rough patches and improves skin feel by filling in microscopic gaps on the surface
  • Skin Protecting: Forms a light breathable film that shields against irritants and strengthens the skin’s natural barrier

Who Can Use Murdannia Keisak Extract

Murdannia Keisak Extract suits most skin types, including dry, normal, combination and oily complexions. Its humectant and emollient properties give dry or dehydrated skin extra moisture while the lightweight finish does not feel greasy on oilier skin. Sensitive skin generally tolerates it well thanks to its calming antioxidants, but those with a known sensitivity to botanical ingredients should proceed cautiously.

The extract is plant derived and processed without animal by-products, making it appropriate for vegans and vegetarians.

There is no data showing the ingredient to be harmful in pregnancy or while breastfeeding. Still, this is not medical advice and anyone who is pregnant or nursing should confirm with a healthcare professional before adding new skincare products.

Murdannia Keisak Extract does not increase photosensitivity, so it can be used both day and night. As always daily sunscreen is recommended as part of a balanced routine.

Potential Side Effects/Adverse Reactions

Responses to topical Murdannia Keisak Extract vary from person to person. The issues listed below are uncommon and most users experience no problems when products are formulated and used correctly.

  • Mild irritation – a transient stinging or burning sensation, usually resolving quickly once the product is removed
  • Redness or flushing – temporary warmth and color in the treated area, particularly on very reactive skin
  • Contact dermatitis – localized itching, swelling or rash in individuals allergic to components of the plant
  • Interaction with broken skin – increased sensitivity or discomfort if applied to open cuts or compromised areas

If you experience any of these reactions discontinue use and seek medical guidance if symptoms persist or worsen.

Comedogenic Rating

Rating: 1/5 – Murdannia Keisak Extract is supplied as a water- or glycerin-based solution with very low oil content, so it is unlikely to clog pores. The small amount of naturally occurring fatty acids provides softness without leaving a heavy residue. People who break out easily can generally use it without concern, though extremely acne-prone skin should still monitor how any new formula behaves. There are no published reports linking this extract to increased blackheads or pimples.

Summary

Murdannia Keisak Extract works as an antimicrobial antioxidant humectant emollient and skin protectant. Phenolic compounds neutralize free radicals, mild sugars and amino acids pull moisture into the stratum corneum, while a thin botanical film locks that water in and helps fend off everyday irritants. Its gentle antimicrobial action also keeps both the product and the skin surface fresher.

The extract is not yet a mainstream superstar like hyaluronic acid or niacinamide, but formulators are beginning to add it to calming masks and light moisturizers for its multitasking benefits.

Current research and real-world use show it to be well tolerated by most skin types with a very low risk of adverse effects. As with any new skincare ingredient it is wise to perform a patch test before full use to ensure personal compatibility.

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