Equisetum Giganteum 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 Equisetum Giganteum Extract?

Equisetum Giganteum Extract is a plant-based ingredient obtained from the whole horsetail plant Equisetum giganteum L. Native to South America, this hardy plant is rich in minerals, flavonoids and small amounts of natural silica, which together give it a reputation for supporting healthy looking skin. Traditional communities brewed horsetail infusions for hair and skin care long before modern cosmetics adopted it. Today manufacturers harvest the aerial parts, dry them and steep them in a solvent such as water or a mix of water and glycerin. The liquid is then filtered and concentrated to create the extract used by formulators.

You will most often spot Equisetum Giganteum Extract in moisturizers, toners, anti-aging serums, firming masks and lightweight facial mists where it lends a botanical touch and gentle skin support.

Equisetum Giganteum Extract’s Cosmetic Benefits/Uses

In skin care formulas Equisetum Giganteum Extract serves a single official role, providing benefits tied to skin conditioning.

As a skin conditioning agent the extract helps the surface of the skin feel softer and smoother. Its blend of minerals and plant compounds can support a refreshed appearance, making the product feel more hydrating and comfortable on application.

Who Can Use Equisetum Giganteum Extract

Equisetum Giganteum Extract is generally suitable for all skin types including dry, normal, combination and oily skin thanks to its lightweight water-based profile that conditions without leaving a greasy film. Sensitive skin usually tolerates it well because the extract does not contain common irritants, though anyone with a known allergy to horsetail or related plants should approach with caution.

The ingredient is plant derived and processed without animal by-products so it aligns with vegan and vegetarian lifestyles. As long as the finished formula is free of animal-sourced additives the presence of Equisetum Giganteum Extract itself will not conflict with cruelty-free preferences.

No specific warnings exist for topical use during pregnancy or while breastfeeding. That said this is not medical advice and pregnant or nursing individuals should consult a healthcare professional before adding any new skincare product to their routine just to be safe.

Equisetum Giganteum Extract does not make skin more sensitive to sunlight and there are no reports of it interfering with daytime sun exposure. It should also play well alongside most common actives such as niacinamide and hyaluronic acid making it a flexible choice in multi-step routines.

Potential Side Effects/Adverse Reactions

Reactions to topical Equisetum Giganteum Extract vary from person to person. The following points list potential side effects yet most people will not encounter them when using a well-formulated product.

  • Mild redness or stinging shortly after application
  • Itching or localized rash in individuals allergic to horsetail species
  • Dryness if the formula contains high alcohol content alongside the extract
  • Eye irritation if the product accidentally gets into the eyes

If any of these issues occur discontinue use and seek advice from a healthcare professional if symptoms persist.

Comedogenic Rating

Rating: 1 out of 5. Equisetum Giganteum Extract is mostly water soluble and contains minimal oils or waxes, which keeps its pore-clogging potential very low. It conditions the skin without forming an occlusive film that can trap sebum. Because of this, the extract is generally suitable for people who are prone to acne or breakouts. Keep in mind overall formula composition and personal skin response can still influence results.

Summary

Equisetum Giganteum Extract is a plant-derived skin conditioning ingredient that helps skin feel softer and look refreshed thanks to its natural mix of minerals, flavonoids and trace silica. While not a blockbuster additive, it appears in a steady stream of moisturizers, toners and mists favored by brands with a botanical or clean beauty angle. Topically it is considered low risk with very few reported reactions, yet it is always smart to patch test any new product to confirm personal compatibility.

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