Science
Mechanism of Action
This advanced extract targets several key biological pathways to revitalize skin. It provides deep hydration via its polysaccharide content, reinforcing the skin's moisture barrier. Acting as a powerful antioxidant, it neutralizes free radicals through compounds like ferulic acid, γ-oryzanol, and phenolic acids, thereby safeguarding against environmental damage. Furthermore, it stimulates collagen synthesis within fibroblasts and promotes keratinocyte proliferation, while simultaneously inhibiting collagenase activity, which collectively works to diminish the appearance of fine lines and wrinkles. It also contributes to an even skin tone by inhibiting tyrosinase activity, reducing hyperpigmentation, and calms irritated skin due to its intrinsic anti-inflammatory properties.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 In a 12-week human study involving 28 volunteers (ages 30-55), creams containing rice callus extract, applied twice daily, led to a significant 38.57% increase in skin lightening, 74.62% increase in hydration, and 88.41% increase in elasticity when compared to a placebo group.
- 02 An aqueous rice callus extract, tested in vitro at a concentration of 3200 µg/mL, demonstrated an impressive 85% inhibition of melanin biosynthesis.
- 03 A 'rice crude extract' (Oryza sativa L.), tested at 2.5% and 5%, was shown to reduce psoriasis severity by decreasing epidermal thickness and inflammation, while enhancing antioxidant properties in artificial human psoriatic skin and a rat model.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
For general formulation, Oryza Sativa Callus Culture Extract is stable within a pH range of 4.5 to 7.0. Optimal stability for the growth and differentiation of the rice callus itself in cell culture studies is observed in a slightly narrower pH range of 5.5-6.0.
Safety
Safety Profile
While various rice-derived ingredients have been reviewed and deemed safe by the CIR Expert Panel, Oryza Sativa Callus Culture Extract as a specific INCI name has not been explicitly reviewed. However, its general safety profile indicates it is typically non-comedogenic, non-toxic, and well-tolerated by most skin types for topical use, with allergic reactions being rare. Patch testing is recommended for individuals with highly reactive skin.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This multi-functional ingredient offers significant improvements in skin hydration, elasticity, and tone, combined with robust antioxidant protection and soothing properties, positioning it as a valuable asset in advanced skincare formulations.
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References
Sources