What Is Lentinus Edodes/Licorice Root Extract Ferment Filtrate?
Lentinus Edodes/Licorice Root Extract Ferment Filtrate comes from the roots of the licorice plant, Glycyrrhiza glabra, which are fermented with the mushroom Lentinus edodes, better known as shiitake. During fermentation the mushroom’s enzymes break down the larger plant molecules into smaller, skin friendly fragments while also generating new bioactive compounds. The resulting liquid is then filtered, leaving a clear to pale amber filtrate rich in antioxidants, natural sugars and amino acids.
Licorice root has been prized for centuries in traditional beauty rituals for its brightening and soothing qualities, while shiitake has a history of use in Asian skincare for its antioxidant power. Modern cosmetic chemists combined the two ingredients through fermentation to boost potency and improve skin compatibility. Fermentation also lowers the pH slightly and creates a lighter texture so the filtrate slips easily into modern formulations.
The ingredient is produced by macerating cleaned licorice roots in water, inoculating the mixture with Lentinus edodes, allowing the culture to ferment under controlled temperature and oxygen levels, then removing solids through fine filtration and gentle pasteurization. No harsh solvents are required, which keeps the final material mild enough for daily use.
You will most often find Lentinus Edodes/Licorice Root Extract Ferment Filtrate in lightweight serums, hydrating essences, sheet masks, anti aging creams, brightening spot treatments, moisturizers for sensitive skin and after sun lotions where its soothing and antioxidant profile can shine.
Lentinus Edodes/Licorice Root Extract Ferment Filtrate’s Cosmetic Benefits/Uses
Thanks to the synergy of fermented licorice root and shiitake mushroom this multitasking ingredient supports skin health in several ways
- Antioxidant: Fermentation boosts the level of polyphenols and beta glucans that neutralize free radicals generated by UV light and pollution, helping to protect skin from premature aging signs like fine lines and dullness
- Humectant: Natural sugars and amino acids formed during fermentation attract water and bind it to the outer layer of skin, giving an instant plumping effect and keeping dryness at bay throughout the day
- Skin Conditioning: The blend calms visible redness, supports an even tone thanks to licorice’s gentle brightening properties and leaves skin feeling soft smooth and supple without a heavy or greasy finish
Who Can Use Lentinus Edodes/Licorice Root Extract Ferment Filtrate
This ingredient is considered gentle enough for every skin type including dry, oily, combination and particularly sensitive or redness-prone complexions since it is free of fragrance and harsh solvents. Its light humectant character also suits acne-prone skin because it hydrates without clogging pores or leaving an oily film. There are no known skin types for which it is outright unsuitable unless an individual has a confirmed allergy to licorice or mushroom derivatives.
Lentinus Edodes/Licorice Root Extract Ferment Filtrate is plant and fungi based with no animal by-products used in its manufacture so it is appropriate for both vegans and vegetarians. The fermentation medium is water based and does not typically involve animal-derived nutrients.
Topical use is generally regarded as low risk for people who are pregnant or breastfeeding since systemic absorption is minimal, yet licorice can have hormone-like effects when ingested so an extra margin of safety is advised. This is not medical advice and anyone who is pregnant or nursing should clear new skincare products with their doctor before adding them to a routine.
The filtrate does not cause photosensitivity so it can be used morning or night. It layers well with most actives such as niacinamide, vitamin C or retinoids and it is stable across a wide pH range.
Potential Side Effects/Adverse Reactions
Responses to topical Lentinus Edodes/Licorice Root Extract Ferment Filtrate vary from person to person. The points below list potential side effects that could occur in rare cases. Assuming the cosmetic formula is well crafted most users will not experience these issues.
- Mild irritation or stinging on very compromised or freshly exfoliated skin
- Redness or flushing in individuals sensitive to licorice constituents such as glycyrrhizin
- Allergic contact dermatitis presenting as itchiness or rash in those with a mushroom allergy
- Temporary dryness if used in formulas with high alcohol content
If any of these reactions develop discontinue use and consult a healthcare professional for guidance.
Comedogenic Rating
Rating: 0–1 (very low)
Lentinus Edodes/Licorice Root Extract Ferment Filtrate is a water based filtrate rich in small humectant molecules rather than heavy oils or waxes that can block pores. Its sugar and amino acid profile helps pull water into skin instead of sitting on the surface, so it does not create the kind of oily film that feeds breakouts. The slight presence of licorice polyphenols and mushroom beta glucans also has a calming effect that may help keep blemish related redness down.
Because of its very low pore clogging potential this ingredient is generally suitable for acne prone or congestion prone skin.
If a formula pairs the filtrate with heavier butters, thick silicones or high levels of fatty alcohols the overall product could still feel occlusive, so always check the full ingredient list.
Summary
Lentinus Edodes/Licorice Root Extract Ferment Filtrate acts as an antioxidant, humectant and skin conditioning agent all at once. The fermentation process ramps up polyphenols and beta glucans that fight free radicals, while newly formed sugars and amino acids draw in water for lasting hydration. At the same time licorice root compounds even tone and soothe visible redness, leaving skin softer and more comfortable.
You will spot this filtrate more often in newer K beauty inspired serums, essences and masks than in classic Western creams, but its popularity is rising as brands look for gentle multitasking botanicals.
Overall safety is high with only rare reports of irritation or allergy. Still it is smart to patch test any new product to make sure your skin agrees before applying it to your whole face.