Setaria Viridis 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 30, 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 Setaria Viridis Extract?

Setaria Viridis Extract comes from the green foxtail plant, a small grass that grows in many temperate regions. The whole plant is harvested and then steeped in a mix of water or a light alcohol solution to pull out its helpful parts. After filtration the liquid is concentrated, leaving a gentle plant based extract ready for skin care use.

Chemically it holds natural sugars, amino acids, small proteins and a touch of protective plant antioxidants. These elements give the extract a mild yet pleasant feel on the skin.

People have grown green foxtail for thousands of years as animal feed and in some areas as a minor grain. Its smooth touch and sugar content later caught the eye of cosmetic chemists looking for new ways to soften skin without heavy oils. Today you will spot Setaria Viridis Extract in light moisturizers, hydrating serums, soothing masks, after sun lotions, baby lotions and even some rinse off cleansers.

Setaria Viridis Extract’s Cosmetic Benefits/Uses

This ingredient is prized for a single role in skin care formulas: skin conditioning. By surrounding the skin with a thin layer of plant sugars and amino acids, the extract helps hold water at the surface. The added moisture leaves skin feeling softer, smoother and more supple while giving a fresh healthy look.

Who Can Use Setaria Viridis Extract

Setaria Viridis Extract is gentle enough for nearly all skin types including normal, dry, oily, combination and sensitive skin because it supplies light hydration without heavy oils or known irritants. Very reactive skin should still watch for any personal sensitivities to grass derived ingredients.

The extract is 100 percent plant based so it is suitable for vegans and vegetarians. No animal derived materials are involved in its harvesting or processing.

Current safety data show no specific issues for pregnant or breastfeeding women when the extract is used topically in cosmetic amounts. This is not medical advice and anyone who is pregnant or nursing should ask a healthcare professional before adding new skincare products just to be safe.

The ingredient does not cause photosensitivity, so you can use it both day and night without raising the risk of sun reactions. It also plays well with most other common skincare ingredients and has no known interactions with actives like retinol or vitamin C.

Potential Side Effects/Adverse Reactions

Side effects from topical Setaria Viridis Extract can vary from person to person. The points below list potential reactions that may occur in rare cases. When the ingredient is formulated and used correctly most people will not notice any problems.

  • Mild redness or warmth
  • Transient itching or tingling
  • Dry patches if the product contains a high level of drying alcohol as a solvent
  • Allergic contact dermatitis in individuals allergic to grasses or grain pollens
  • Eye stinging if the product accidentally gets into the eyes

If you experience any of the above reactions stop using the product and seek guidance from a medical professional.

Comedogenic Rating

Rating: 0 / 5

Setaria Viridis Extract is almost entirely made up of water soluble sugars, amino acids and small proteins, with very little oil or wax. These components sit lightly on the skin, rinse away easily and do not block pores, which is why the extract earns a zero on the comedogenic scale.

This makes it perfectly fine for people who are prone to acne or frequent breakouts.

Keep in mind that the overall formula matters. If the extract is mixed into a heavy cream loaded with rich butters or thick silicones the finished product could still clog pores even though the extract itself does not.

Summary

Setaria Viridis Extract is used mainly as a skin-conditioning agent. Its natural sugars and amino acids act like tiny moisture magnets that draw water to the surface of the skin, leaving it soft, smooth and comfortable without a greasy feel.

The ingredient is not a big headline grabber, yet formulators appreciate its mild touch so you will find it in a growing number of lightweight lotions, baby care items and soothing masks.

Current research shows it to be very safe for topical use with only rare reports of irritation, mostly in people who already react to grass pollens. As with any new skincare product it is smart to run a quick patch test first just to make sure your skin agrees.

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