Paecilomyces Japonica/Panax Ginseng Root Ferment 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: 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 Paecilomyces Japonica/Panax Ginseng Root Ferment Filtrate?

Paecilomyces Japonica/Panax Ginseng Root Ferment Filtrate starts with the familiar Panax ginseng root, a plant treasured in East Asia for centuries. Instead of using raw ginseng, cosmetic chemists allow the friendly fungus Paecilomyces japonica to ferment the root in a carefully controlled setting. During fermentation the fungus breaks down large ginseng molecules into smaller skin friendly fragments and enriches the mixture with peptides, amino acids, organic acids and water soluble sugars. Once fermentation is complete the liquid is filtered to remove any solid residue, leaving a clear nutrient rich filtrate ready for skincare.

Fermented botanicals entered mainstream beauty around the early 2000s when Korean formulators looked for ways to make traditional herbs more potent and gentler on skin. This particular filtrate gained attention because it marries the resilience of ginseng with the bio-availability that fermentation brings. Today you can find it in hydrating essences, anti aging serums, sheet masks, eye creams, lightweight moisturizers and soothing toners where it helps refresh tired skin and support a smoother look.

Paecilomyces Japonica/Panax Ginseng Root Ferment Filtrate’s Cosmetic Benefits/Uses

This fermented filtrate is prized for its ability to keep the skin feeling soft supple and healthy.

As a skin conditioning ingredient it helps bind water to the surface of the skin improving hydration levels, supports a smoother texture and delivers antioxidant compounds that can reduce the look of early aging. Over time regular use can leave the complexion looking brighter and more balanced.

Who Can Use Paecilomyces Japonica/Panax Ginseng Root Ferment Filtrate

This fermented ginseng filtrate is gentle enough for most skin types. Its lightweight hydrating profile suits dry, normal and combination skin while the non greasy finish also makes it comfortable for oily or acne prone complexions. Sensitive skin generally tolerates it well because fermentation reduces the chance of harsh residues, though individuals with known mushroom or mold sensitivities may want to stay cautious.

The ingredient is produced from a plant root and a non animal fungus so it is typically acceptable for vegans and vegetarians, provided the finished formula is free of animal derived additives such as beeswax or collagen.

No specific safety warnings exist for topical use during pregnancy or breastfeeding. Still, research on fermented ginseng in these populations is limited. This is not medical advice and pregnant or nursing women should ask a qualified healthcare professional before adding any new skincare product to their routine.

The filtrate is not known to increase sun sensitivity and can be used both day and night. Standard daily sunscreen is still recommended to protect the skin from UV damage.

Potential Side Effects/Adverse Reactions

Side effects and reactions to topical Paecilomyces Japonica/Panax Ginseng Root Ferment Filtrate vary from person to person. The following is a list of potential side effects that remain unlikely for the average user when the ingredient is formulated and used correctly.

  • Redness or mild irritation, particularly on very reactive skin
  • Itching or stinging sensations shortly after application
  • Allergic contact dermatitis in individuals sensitive to ginseng or fungi
  • In rare cases a temporary acne or folliculitis flare if the formula is overly occlusive

If any discomfort or adverse change appears stop using the product and seek advice from a medical professional.

Comedogenic Rating

Rating: 0 / 5

This filtrate is almost entirely water based and contains mainly low molecular weight humectants, peptides and sugars with no heavy oils or waxes that could clog pores. Because it is light, non occlusive and quickly absorbed it earns the lowest possible score on the comedogenic scale.

That makes it broadly suitable for people who are prone to acne or frequent breakouts.

As always overall pore friendliness depends on the final product: thick creams or balms that include this filtrate alongside richer emollients could still feel heavy on oily skin.

Summary

Paecilomyces Japonica/Panax Ginseng Root Ferment Filtrate is mainly a skin conditioning agent that hydrates, softens and supplies antioxidant compounds. Fermentation breaks the ginseng root into smaller fragments that can penetrate more easily, while also adding amino acids and organic acids that help bind water to the surface of the skin.

You will spot it most often in Korean inspired essences, serums and masks. It is not as famous as niacinamide or hyaluronic acid yet, but its gentle nature and link to traditional ginseng keep nudging it into more formulas each year.

Topical use is considered low risk for the vast majority of skin types with only rare cases of sensitivity. Still, skin is personal so it is wise to patch test any new product that contains this or any other active before applying it to the entire face.

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