Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

RHIZOPUS/SACCHAROMYCES/RICE LEES FERMENT EXTRACT.

Insufficient Data / ANTIOXIDANT, SKIN CONDITIONING, SKIN PROTECTING

RHIZOPUS/SACCHAROMYCES/RICE LEES FERMENT EXTRACT is a bio-fermented ingredient derived from rice lees, utilizing a co-fermentation process with Rhizopus and Saccharomyces species. This enzymatic transformation enriches the extract with a complex profile of beneficial compounds, offering a range of potential skincare advantages.

Summary

Hydration Barrier Support Antioxidant Skin Brightening Anti-inflammatory Anti-aging Exfoliation Skin Firming Skin Elasticity Cell Renewal

Science

Mechanism of Action

The fermentation of rice lees by Rhizopus and Saccharomyces yields a rich blend of organic acids, amino acids, polyphenols, polysaccharides, vitamins (including B6 and B12), and essential minerals (such as zinc, copper, and manganese). These components collectively contribute to enhanced skin hydration, robust barrier function, and potent antioxidant protection, effectively mitigating oxidative stress and preventing photoaging. The extract also demonstrates anti-inflammatory and anti-aging properties, while promoting gentle exfoliation by aiding in the removal of dead skin cells, leading to visibly smoother skin, improved clarity, and increased radiance. Additionally, components like glucosylceramide and kojic acid, found in related fermented rice by-products, support skin transparency, firmness, elasticity, and cellular metabolism.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 3.8 – 6
0 7 14

Stability

Fermentation processes typically contribute to the stability and pH balance of formulations. Optimal enzymatic activity for components often present in Rhizopus fermentation, such as glucoamylase, is observed between pH 4.0 and 6.0, with the fermentation liquor itself tending to stabilize within the pH range of 3.8–4.6.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel has issued 'Insufficient Data Announcements' for a broad category of yeast-derived ingredients, including various Saccharomyces extracts, indicating a need for additional data on dermal sensitization and food use/GRAS (Generally Recognized As Safe) status for cosmetic applications. While Saccharomyces cerevisiae holds FDA GRAS status for food use up to 5%, this designation does not directly extend to the topical cosmetic use of this specific combined ferment extract. Toxicity assessments (oral/parenteral, dermal, inhalation) for similar 'Aspergillus/Saccharomyces Rice Ferment Lees' are reported as 'Not determined', and no GHS classification or specific hazard statements were identified.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

While RHIZOPUS/SACCHAROMYCES/RICE LEES FERMENT EXTRACT presents a promising array of mechanistic benefits for skin hydration, barrier integrity, and antioxidant defense, the CIR Expert Panel has designated its safety data as 'insufficient', necessitating further comprehensive assessment for cosmetic use.

Related

Similar Ingredients

Finding similar ingredients…