Eupenicillium Crustaceum Ferment Lysate Extract Filtrate: 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 Eupenicillium Crustaceum Ferment Lysate Extract Filtrate?

Eupenicillium Crustaceum Ferment Lysate Extract Filtrate comes from a controlled fermentation of the naturally occurring fungus Eupenicillium crustaceum. During fermentation the microorganism produces a rich broth filled with small proteins, amino acids, sugars, vitamins and trace minerals. After the cells are gently broken apart (a step called lysis) the mixture is carefully extracted and passed through fine filters. What remains is a clear, lightweight liquid that can be blended into skin care formulas.

Fermented ingredients began gaining attention in Japanese and Korean beauty circles in the 1970s as brands searched for gentle yet effective alternatives to harsh actives. Scientists noticed that workers handling fermented broths often had unusually smooth youthful hands, sparking interest in these bio-derived compounds. Over time the technology spread worldwide, and suppliers refined methods to ensure purity safety and consistent performance.

Today Eupenicillium Crustaceum Ferment Lysate Extract Filtrate shows up in moisturizers, anti-aging serums, hydrating essences, sheet masks, soothing after-sun gels, eye creams and even lightweight mists. Its water-like texture integrates easily with both oil-free and richer creams making it a flexible addition to many product types.

Eupenicillium Crustaceum Ferment Lysate Extract Filtrate’s Cosmetic Benefits/Uses

This ingredient is prized for a single key role in skin care formulations.

Skin conditioning: The filtrate bathes skin in naturally derived peptides and humectants that attract and hold moisture helping to keep the surface soft supple and comfortable. At the same time the blend of micronutrients supports the skin’s own barrier so it feels stronger and less prone to dryness or tightness. Formulators often include it to boost overall hydration improve texture and impart a healthy fresh look without adding heaviness or residue.

Who Can Use Eupenicillium Crustaceum Ferment Lysate Extract Filtrate

The watery consistency and low oil content make this ferment suitable for nearly every skin type including dry, normal, oily, combination and even sensitive skin that often reacts to strong actives. Because it is primarily composed of small peptides and sugars it sinks in quickly without clogging pores, so acne-prone users generally tolerate it well. Those with a confirmed mold allergy or a history of reacting to fermented ingredients should proceed with caution since trace residual proteins could act as triggers.

The ingredient is produced by fermenting a fungus in a plant-based growth medium and involves no animal-derived substances or by-products, so it aligns with vegan and vegetarian standards.

Current safety data show no specific concerns for women who are pregnant or breastfeeding. That said, this is not medical advice and anyone expecting or nursing should show the full product label to their physician before adding it to a routine, just to be safe.

Unlike exfoliating acids or retinoids this ferment does not thin the outer skin layer or interfere with pigment, so it does not increase photosensitivity. A daily broad-spectrum sunscreen is still recommended as part of basic skin health.

Potential Side Effects/Adverse Reactions

Responses to topical Eupenicillium Crustaceum Ferment Lysate Extract Filtrate vary from person to person. The reactions listed below are possible but uncommon when the ingredient is properly formulated and used as directed.

  • Transient redness or warmth
  • Mild stinging or tingling on application
  • Itchiness or a feeling of tightness
  • Localized rash or hives indicating an allergic response
  • Fungal acne-like breakouts in individuals highly sensitive to yeast derivatives

If any discomfort or visible irritation develops stop use right away and seek advice from a qualified healthcare professional.

Comedogenic Rating

Rating: 0 out of 5

Eupenicillium Crustaceum Ferment Lysate Extract Filtrate is a water-based liquid with virtually no oils or waxy residues so it does not block pores. Its key components are small peptides, amino acids and sugars that dissolve fully in water and rinse away easily. As a result it earns the lowest possible score on the comedogenic scale.

Suitable for acne-prone or breakout-prone skin.

Because this ferment is usually added at low concentrations within lightweight formulas it rarely interacts with other ingredients in a way that would raise its pore-clogging potential.

Summary

Eupenicillium Crustaceum Ferment Lysate Extract Filtrate acts mainly as a skin conditioner. The ferment floods skin with micro-nutrients and humectants that draw in moisture then help hold it at the surface so skin feels smoother, softer and more resilient. By supporting the moisture barrier it can also reduce feelings of tightness or dryness.

While not yet a household name this ingredient is quietly gaining traction with formulators who value gentle bio-derived actives. You will most often find it in hydration-focused serums, toners and masks where it adds slip and a refreshed finish without heaviness.

Current research and use data point to a strong safety profile with low irritation risk for most users. Even so every skin is unique so it is wise to patch test any new product that features this ferment before applying it to the entire face.

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