What Is Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate?
Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate is a fermented blend that starts with Ophioglossum vulgatum, a small fern also called adder’s-tongue. The fern extract is mixed with the edible mushroom Grifola frondosa, better known as maitake. During fermentation the mushroom breaks down the fern’s plant matter, releasing skin-friendly compounds and creating new ones such as peptides, polysaccharides, amino acids and antioxidants. Once fermentation is complete the mix is carefully filtered, leaving a clear liquid rich in these active molecules.
Fermentation has long been used in beauty routines, especially in parts of Asia, to boost the potency and absorption of botanical extracts. This particular filtrate entered modern cosmetic labs as formulators searched for gentle plant-based ingredients that could moisturize and soothe without heaviness.
Today you will commonly spot Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate in lightweight serums, hydrating essences, sheet masks, daily moisturizers and anti-aging products aimed at restoring bounce and comfort to the skin.
Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate’s Cosmetic Benefits/Uses
The beauty industry classifies this ferment filtrate under one main function: skin conditioning. In a formula it works to keep the skin surface soft, smooth and well hydrated. The mix of natural sugars, proteins and micronutrients helps the skin hold on to water, supports a healthy moisture barrier and leaves the complexion looking supple and refreshed.
Who Can Use Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate
This ferment filtrate is generally suitable for all skin types. Its light watery texture makes it comfortable for oily or combination skin while the humectant sugars help dry or mature skin hold moisture. The soothing compounds produced during fermentation can also be helpful for sensitive or easily irritated skin. There are no known reasons it would be unsuitable for any specific skin type unless a person has an individual allergy to mushrooms or ferns.
Because the ingredient is derived from a plant extract and a culinary mushroom with no animal by-products added, it aligns with vegan and vegetarian preferences.
Current data suggests topical use is low risk for women who are pregnant or breastfeeding. That said this is not medical advice and anyone expecting or nursing should check with a healthcare professional before introducing new skincare products.
The filtrate does not increase sensitivity to sunlight so it is not considered photosensitising. It also plays well with most common actives such as niacinamide, hyaluronic acid and gentle exfoliating acids.
Potential Side Effects/Adverse Reactions
Side effects and reactions to the topical application of Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate can vary from person to person. The points below list potential issues only and they are unlikely to occur for most users when the ingredient is formulated and used correctly.
- Mild redness or stinging in very reactive skin
- Localized itching caused by a mushroom or fern allergy
- Contact dermatitis in individuals sensitive to fermentation by-products
- Rare fungal acne-like breakouts in those prone to Malassezia overgrowth
If any of these effects appear discontinue use and consult a healthcare professional or dermatologist for guidance.
Comedogenic Rating
Rating: 0–1. This ferment filtrate is a thin watery liquid with virtually no heavy oils or waxes, meaning it does not clog pores under normal use. The molecules created during fermentation are mostly low-weight sugars, amino acids and antioxidants that absorb quickly and leave little residue. Because of this lightweight profile the ingredient is generally suitable for acne-prone or breakout-prone skin. Those with fungal acne tendencies should still monitor how their skin responds because any ferment could theoretically feed Malassezia, but reports of this are rare.
Summary
Grifola Frondosa/Ophioglossum Vulgatum Extract Ferment Filtrate is valued as a skin-conditioning agent that hydrates, soothes and supports the skin barrier. Fermentation turns the original fern extract into a cocktail of humectant sugars, barrier-friendly polysaccharides, free-radical-fighting antioxidants and skin-replenishing amino acids, all of which team up to leave skin soft and comfortable.
While not yet as well known as classics like hyaluronic acid, this ferment has been gaining quiet popularity in K-beauty style essences and serum mists thanks to its light feel and botanical origins.
Current evidence points to a low risk of irritation or pore clogging for most users and it is considered safe for all skin types. As with any new cosmetic ingredient, patch testing a small area before full use is a smart precaution.