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SACCHAROMYCES/RICE LEES FERMENT FILTRATE.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Saccharomyces/Rice Lees Ferment Filtrate is a biotechnologically derived active obtained through the fermentation of rice lees by Saccharomyces yeast. This process yields a nutrient-rich filtrate abundant in beneficial compounds such as amino acids, vitamins, and antioxidants. It is designed to enhance skin health by improving hydration, barrier function, and overall radiance.

Summary

Antioxidant Moisturizer/Humectant Soothing Skin-identical ingredient Collagen Support Improves Elasticity Barrier Support Anti-aging Skin Regeneration Microflora Harmonization Skin Whitening

Science

Mechanism of Action

This fermented filtrate delivers a complex array of essential nutrients, including antioxidants, vitamins, minerals, and amino acids, directly to the skin. It actively combats free radicals, thereby reducing oxidative stress and the appearance of fine lines and wrinkles. By stimulating collagen production and enhancing the skin's natural barrier, it improves elasticity and moisturization. Furthermore, its ability to inhibit tyrosinase activity and suppress melanin generation contributes to significant skin whitening effects, while also promoting regeneration and harmonizing the skin's microflora.

Research

Clinical Evidence

Medium confidence
Effective range ≥0.01%
Optimal

0.01%

Key findings

  1. 01 Significant skin whitening activity with no irritation.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.1%
Red flag below
0.1%

While clinical data supports significant skin whitening at a low concentration of 0.01%, typical cosmetic formulations generally recommend 0.1% to 5% for a broader range of benefits, including moisturization, antioxidant activity, and barrier support. Products claiming extensive benefits at concentrations below 0.1% should be critically evaluated, unless their primary claim is specifically related to the proven whitening efficacy.

The Formula

Formulation

Solubility
Water
Optimal pH 5.8 – 6.8
0 7 14

Stability

Fermented ingredients typically exhibit inherent stability due to their low pH, which naturally inhibits bacterial proliferation and extends product shelf life. Optimal stability in cosmetic formulations is observed within a pH range of 5.8 to 6.8.

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
5%
Sensitization risk Low

Although 'Saccharomyces/Rice Lees Ferment Filtrate' specifically lacks a direct CIR review, related 'Saccharomyces Ferment Filtrate' is widely regarded as safe. Recommended for use in leave-on products at concentrations ranging from 0.1% to 5%. A clinical study at 0.01% reported no skin irritation. Despite its excellent safety profile, a patch test is advisable for individuals with particularly sensitive skin.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Saccharomyces/Rice Lees Ferment Filtrate is a valuable multi-functional ingredient, clinically proven for skin whitening and broadly beneficial for hydration, barrier support, and anti-aging with a low risk of irritation.

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