Sophora Japonica Leaf Extract

Product Description

Our standardized Sophora Japonica Leaf Extract is sourced from authenticated Sophora japonica foliage and processed under GMP-aligned controls with batch COA traceability, supplying formulators direct factory pricing and flexible kilogram-to-tonne bulk volumes.

Rutin and quercetin glycoside markers—quantified by HPLC—scavenge reactive oxygen species, modulate inflammatory signaling, and support capillary wall integrity, linking leaf flavonoids to antioxidant, anti-redness, and photo-defense claims in serums and emulsions.

Unlike flower-derived Sophora extracts focused on cosmetic brightening narratives, this leaf-standardized material suits sensitive-skin, couperose, and anti-aging portfolios where formulators want traceable rutin assays without synthetic flavonoid substitutes.

Product Specification

• INCI Name: Sophora Japonica Leaf Extract
• CAS No.: N/A
• Botanical Source: Sophora japonica L., leaf (Typical)
• Extraction Solvent: Ethanol / water (Typical)
• Active Marker: Rutin, 2–10% (Typical, HPLC)
• Extraction Ratio: 10:1 (Typical)
• Appearance: Greenish-brown to brown fine powder (Typical)
• Solubility: Partially soluble in water; soluble in ethanol and propylene glycol (Typical)
• Suggested pH: 4.5–7.0 in finished formulas (Typical)
• Assay Method: HPLC for rutin and total flavonoids (Typical)
• Shelf Life: 24 months sealed, below 25°C (Typical)
• Standard Packaging: 1 kg / 25 kg
• Storage: Keep sealed, cool, dry, and protected from light (Typical)
• Regulatory Status: Listed in CosIng as Sophora Japonica Leaf Extract; INCI recognized
• Quality & Testing: Typical COA covers rutin assay, heavy metals, and microbial limits
• Compliance Note: For cosmetic use only; confirm regional botanical restrictions before export use

Key Benefits & Applications

This leaf extract supports antioxidant, capillary-comfort, and photo-defense claims through rutin-rich Sophora japonica suited to sensitive-skin and anti-aging formulators.

• Antioxidant Protection: Rutin and quercetin glycosides scavenge reactive oxygen species in daytime antioxidant serums and essences.
• Anti-Inflammatory Modulation: Leaf flavonoids help modulate cytokine-linked irritation in sensitive-skin toners and calming emulsions.
• Capillary & Redness Support: Rutin supports capillary wall integrity in couperose-prone and reactive redness care systems.
• Anti-Aging Defense: Helps limit MMP-mediated matrix degradation in mature-skin and photo-damage repair creams.
• Photo-Aging Protection: Flavonoid antioxidants defend against UV-induced oxidative stress in outdoor-exposed skin care lines.

Formulation Guidelines

Introduce standardized Sophora leaf extract in aqueous or hydroalcoholic phases; verify rutin assay and preservation for water-rich sensitive-skin bases.

• Suggested use level: 0.5–3% w/w in serums, creams, and redness-relief toners (Typical).
• Processing: Pre-dissolve in glycerin, propylene glycol, or ethanol before adding to water phase at 30–40°C.
• pH window: Maintain 4.5–7.0; rutin stability best in mildly acidic to neutral systems (Typical).
• Compatibility: Works with niacinamide and vitamin C derivatives; avoid strong oxidizers that may degrade flavonoids.
• Preservation: Requires broad-spectrum preservation in water-rich leave-on facial formulas.
• Synergy: Pair Ascorbic Acid at 5–10% with rutin-rich Sophora leaf in antioxidant daytime serums for flavonoid–vitamin C synergy.