Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate 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: 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 Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract?

Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract is a yeast-derived ingredient created by fermenting the microorganism Pichia pastoris that has been genetically instructed to produce a specific polypeptide originally isolated from Ganoderma microsporum, a type of medicinal mushroom. The resulting liquid is filtered to remove the yeast cells, leaving behind a clear filtrate rich in the bioactive polypeptide, amino acids, peptides and natural humectants.

Fermentation technology first drew the attention of skin-care formulators in the 1990s for its ability to yield small, skin-friendly molecules packed with nutrients. As genetic engineering improved, researchers began inserting mushroom and plant genes into yeast to produce precise peptides at scale. Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract emerged from this wave of innovation as brands searched for gentle yet potent antioxidant complexes.

The production process starts with culturing Pichia pastoris in stainless steel tanks under controlled temperature, pH and oxygen levels. Once the yeast has churned out enough Ganoderma-inspired polypeptide, the broth is filtered, concentrated and sometimes further refined to remove excess salts or byproducts. The final extract is water-soluble, low odor and compatible with most skin-care bases, making it easy for formulators to add to serums, sheet masks, eye creams, moisturizers, anti-aging concentrates and post-treatment soothing gels.

Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract’s Cosmetic Benefits/Uses

This ferment filtrate brings a trio of skin-friendly actions that can elevate everyday formulas

  • Antioxidant – Helps neutralize free radicals generated by UV exposure and pollution which can lead to dullness and early wrinkles supporting a brighter fresher look
  • Skin Conditioning – Supplies peptides and amino acids that hydrate soften and improve skin texture for a smoother feel
  • Skin Protecting – Forms a lightweight shield that reinforces the skin barrier reducing moisture loss and increasing resilience against external irritants

Who Can Use Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract

This ferment filtrate is light water based and generally well tolerated across most skin types. Dry and mature skin appreciate the added hydration while oily and combination skin benefit from its non greasy texture that will not clog pores. Sensitive complexions usually find the ingredient calming though anyone with a known yeast or mushroom allergy should proceed with caution since the peptide originates from those sources.

The ingredient is produced through microbial fermentation and does not rely on any animal derived material so it is suitable for both vegans and vegetarians.

No studies have flagged concerns for pregnant or breastfeeding women when the extract is used topically however research in this area is limited. This is not medical advice and expectant or nursing mothers should check with their doctor before adding new products to their routine.

Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract does not make skin more sensitive to sunlight so it will not increase the risk of sunburn. It also plays well with most other skincare actives making it easy to slot into day or night routines.

Potential Side Effects/Adverse Reactions

Reactions to topical Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract vary from person to person. The points below outline potential issues that could occur though most users will not experience them when the ingredient is properly formulated and used as directed.

  • Mild redness or stinging especially on very reactive skin during the first few uses
  • Allergic response such as itching swelling or hives in individuals sensitive to yeast or mushroom derived substances
  • Contact dermatitis if combined with other irritating ingredients or preservatives within the finished product
  • Breakout flare in rare cases when used in a heavy occlusive formula that traps oil and debris
  • Eye irritation if the product accidentally enters the eyes

If any negative reaction occurs stop using the product and seek advice from a qualified healthcare professional.

Comedogenic Rating

Rating: 0 / 5

Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract is a lightweight water soluble filtrate that does not contain fatty acids or heavy oils that typically block pores. Its peptide rich profile is quickly absorbed and leaves no residue, so it earns a zero on the comedogenic scale.

This makes the ingredient suitable for people who are prone to acne or frequent breakouts.

Keep in mind that the finished product’s overall formula matters. If the extract is blended into a thick balm or cream packed with rich emollients the product could still feel heavy on oily skin even though the extract itself is non-comedogenic.

Summary

Pichia R-Ganoderma Microsporum Polypeptide-1 Ferment Filtrate Extract works as an antioxidant, skin conditioning and skin protecting agent. The fermented filtrate supplies mushroom inspired peptides and amino acids that neutralize free radicals, hydrate the surface and reinforce the moisture barrier, which together promote a smoother brighter complexion.

While peptides from yeast fermentation are gaining attention in niche K-beauty and cosmeceutical circles this specific extract is still relatively new so you will mainly find it in advanced serums and sheet masks rather than in mass market lines.

Overall safety is considered excellent with low irritation potential and a negligible risk of clogging pores. As with any new skincare ingredient it is wise to patch test the finished product first to ensure your skin agrees with the complete formula.

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