What Is Phellinus Linteus/Rice Ferment Extract?
Phellinus Linteus/Rice Ferment Extract comes from fermenting ordinary rice (Oryza sativa) with a mushroom called Phellinus linteus, part of the Hymenochaetaceae family. During fermentation the mushroom’s enzymes break down rice starches and proteins into smaller bits, freeing amino acids, beta glucans and natural sugars that skin loves. The finished liquid is then filtered and concentrated to form the cosmetic ingredient.
Fermented rice liquids have been part of East Asian beauty rituals for centuries, prized for keeping skin smooth and bright. Interest in Phellinus linteus grew when researchers noticed its rich supply of polysaccharides and antioxidants. Cosmetic chemists combined the two traditions in the early 2000s, creating a ferment that marries rice’s softness with the mushroom’s skin comforting qualities. The result slips easily into modern formulas because it is water based and has a mild scent.
The extract is made in several steps: clean rice is soaked and steamed, cooled, inoculated with Phellinus linteus spores then left to ferment under controlled warmth and humidity. After a few days the liquid is pressed out, filtered and gently heated to destroy any leftover microbes. Some makers also add a light preservative to keep the extract stable until it is blended with other ingredients.
You will often find Phellinus Linteus/Rice Ferment Extract in hydrating sheet masks, daily moisturizers, soothing serums, anti-aging creams and after-sun gels. It pairs well with hyaluronic acid, glycerin and plant oils, making it a popular choice for formulas that promise plumper softer skin.
Phellinus Linteus/Rice Ferment Extract’s Cosmetic Benefits/Uses
This ferment offers two key actions that improve the feel and look of skin care products.
- Humectant: It attracts water from the air and from deeper skin layers, helping to boost surface moisture. This can make skin look fresher and reduce the appearance of fine lines caused by dryness.
- Emollient: Its blend of natural sugars and amino acids forms a light film that smooths rough patches and leaves skin feeling soft and supple without a greasy finish.
Who Can Use Phellinus Linteus/Rice Ferment Extract
Because this ferment is water based and free of heavy oils it suits almost every skin type. Dry and mature skin appreciate the extra moisture while normal and combination skin enjoy a soft, non-greasy feel. Oily or acne-prone users can usually tolerate it as the extract is lightweight and unlikely to clog pores. Those with very reactive or sensitized skin may also benefit thanks to its gentle nature, though they should always watch for any personal sensitivities.
The ingredient comes from rice and a medicinal mushroom so it contains no animal derivatives. That makes it appropriate for both vegans and vegetarians.
Current research shows no issues for women who are pregnant or breastfeeding when the extract is applied topically. Still, this is not medical advice and anyone who is expecting or nursing should run the product past a qualified physician just to be safe.
Phellinus Linteus/Rice Ferment Extract does not increase photosensitivity so it can be used day or night without special sun precautions beyond the usual recommendation to wear sunscreen.
Potential Side Effects/Adverse Reactions
Reactions to topical Phellinus Linteus/Rice Ferment Extract vary from person to person. The effects listed below are possible yet uncommon when the ingredient is included at standard cosmetic levels in a well-formulated product.
- Redness or mild irritation
- Temporary stinging on broken or freshly exfoliated skin
- Allergic contact dermatitis for individuals sensitive to mushroom or rice proteins
- Rare fungal acne flare if the user is extremely prone to Malassezia overgrowth
- Contamination-related irritation if the extract has not been properly preserved by the manufacturer
If any unwanted reaction occurs discontinue use and seek advice from a healthcare professional or dermatologist.
Comedogenic Rating
Rating: 0–1 (very low)
Phellinus Linteus/Rice Ferment Extract is a water based humectant and contains no heavy oils or waxes that typically block pores. Its molecules are mostly lightweight sugars amino acids and polysaccharides that sit on the skin surface then rinse away easily. For these reasons formulators consider it virtually non-comedogenic.
Suitable for acne-prone or breakout-prone skin in the vast majority of cases.
One possible exception is for individuals extremely sensitive to fungal acne triggers as any fermented extract can provide trace nutrients for Malassezia. The risk is still low but worth noting for that specific concern.
Summary
Phellinus Linteus/Rice Ferment Extract acts mainly as a humectant and a mild emollient. The fermentation process unlocks small sugars and amino acids that pull water into the upper skin layers boosting hydration while the natural polysaccharides form a thin smoothing film that softens texture. Because it is light and water based it layers well with other hydrators like glycerin or hyaluronic acid.
The ingredient is gaining steady popularity in K-beauty inspired formulas yet it remains a niche choice compared with well known hydrators. Brands that focus on fermented or mushroom powered skincare highlight it as a unique selling point.
Overall safety is high with low irritation and almost no comedogenicity when manufactured and preserved correctly. As with any new skincare ingredient it is smart to perform a quick patch test before full application to rule out personal sensitivities.