Bacillus/Polygonatum Odoratum Extract/Volcanic Ash 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: June 23, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate?

Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate is a fermented blend that starts with Polygonatum odoratum, a traditional East Asian botanical prized for its soothing properties, and finely milled volcanic ash rich in minerals. These raw materials are mixed and allowed to ferment with a friendly microbe called Bacillus. During fermentation the Bacillus breaks down large plant molecules into smaller ones that skin can absorb more easily while drawing trace elements from the ash. The resulting liquid, or filtrate, is then carefully strained to remove solids, leaving a lightweight solution packed with amino acids, minerals and antioxidants.

The idea of combining plant extracts with mineral rich ash came from K-beauty formulators looking for gentle yet effective ways to rebalance stressed skin. Fermentation is a long-standing practice in food and skincare across Korea and Japan because it can boost the potency of natural ingredients. As interest in clean and fermented beauty grew in the early 2010s, this particular filtrate began appearing in laboratory trials, eventually making its way into commercial formulas.

Today you will most often find Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate in hydrating sheet masks, overnight sleeping packs, lightweight serums, balancing toners, anti-aging creams and post-sun soothing gels. Brands use it when they want to add a gentle conditioning boost without heavy oils or silicones.

Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate’s Cosmetic Benefits/Uses

This ingredient is classified in cosmetics as a skin-conditioning agent, meaning its main job is to help skin feel softer, smoother and healthier.

By supplying fermented amino acids and minerals it supports the skin’s natural moisture barrier, helps maintain a comfortable water-oil balance and gives a refreshed look. The lightweight texture also makes it suitable for products aimed at layering, so it conditions without leaving a greasy film.

Who Can Use Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate

This ferment filtrate is generally suitable for all major skin types including normal, dry, combination and oily. Its lightweight watery texture absorbs quickly without leaving residue so it rarely feels heavy on oil-prone skin while the amino acids and minerals offer comfort to drier complexions. Sensitive skin users often tolerate it well thanks to the gentle nature of fermented botanicals though anyone with a known allergy to Polygonatum odoratum or mineral dusts should proceed with caution.

The ingredient is produced from plant material, volcanic ash and a non-animal microbe so it aligns with vegan and vegetarian standards, provided the finished formula does not contain animal-derived additives elsewhere.

No data suggest the filtrate poses unique risks to women who are pregnant or breastfeeding. Still this is not medical advice and expectant or nursing mothers should show the full ingredient list of any new product to their doctor before use to stay on the safe side.

The filtrate does not increase photosensitivity, meaning it will not make skin more prone to sunburn. Standard daytime sun protection habits remain important for overall skin health.

Potential Side Effects/Adverse Reactions

Reactions to topical Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate vary from person to person. The effects listed below are uncommon and most users experience none of them when the ingredient is properly formulated and preserved.

  • Mild redness or stinging brief flushing or tingling can occur in very reactive skin especially if the product also contains exfoliating acids
  • Allergic contact dermatitis swelling itching or rash may develop in individuals allergic to the source plant or fermentation by-products
  • Dryness or tightness overuse in highly astringent formulas could momentarily pull moisture from already dehydrated skin
  • Eye irritation accidental contact with the mucous membranes may cause watering or discomfort
  • Breakouts in acne-prone users rare but possible if the surrounding formula contains heavier occlusives that trap debris

If any of these issues arise stop using the product and seek guidance from a qualified healthcare professional.

Comedogenic Rating

Rating: 0 / 5

Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate is an aqueous ferment with no heavy oils, waxes or fatty alcohols that might clog pores. Its molecules are mainly lightweight amino acids, minerals and small botanical compounds that absorb quickly and rinse away cleanly, leaving little residue inside follicles. Because of this the risk of it blocking pores and triggering blackheads or whiteheads is considered negligible.

Suitable for acne-prone and breakout-prone skin.

Occasionally a final product may pair the filtrate with richer emollients so always check the full ingredient list if you are extremely sensitive to congestion.

Summary

Bacillus/Polygonatum Odoratum Extract/Volcanic Ash Ferment Filtrate is primarily a skin-conditioning agent that softens, smooths and comforts the skin. Fermentation breaks down the Polygonatum odoratum plant compounds into smaller amino acids while drawing beneficial minerals from volcanic ash, creating a lightweight fluid that reinforces the moisture barrier and supports a balanced complexion.

The filtrate enjoys moderate popularity, most visible in K-beauty style toners, masks and serums where consumers look for fermented and mineral-rich options that feel weightless on the skin. It is still a niche ingredient outside those circles but is gaining traction as brands expand their ferment offerings.

Current data show the filtrate to be low risk with a very mild irritation profile. As with any new skincare ingredient it is wise to perform a quick patch test before full-face use, especially if you have reactive or allergy-prone skin.

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