Quercetin

Product Description

Quercetin is a powerhouse bioflavonoid found abundantly in nature and stands as one of the most researched antioxidants in its class. Its primary value in advanced skincare lies in its dual-action capability: it provides exceptional protection against environmental free radicals while acting as a potent anti-inflammatory agent to calm and soothe stressed skin. Emerging research into its senolytic properties—the ability to help clear out non-functioning, aging "zombie" cells—positions it at the forefront of cellular anti-aging technology. For innovative brands developing next-generation anti-aging, anti-pollution, and soothing products, our high-purity Quercetin is a key active for delivering profound, multi-pathway protective and rejuvenating benefits.

Product Uses

• Advanced Anti-Aging & "Senolytic" Skincare: The hero active in cutting-edge 'cellular renewal' serums, night creams, and treatments targeting the fundamental causes of skin aging by helping to clear senescent cells.
• Soothing & Sensitive Skincare: A key ingredient in formulas for sensitive or compromised skin, helping to reduce visible redness and calm irritation due to its powerful anti-inflammatory and anti-histaminic effects.
• Anti-Pollution & Environmental Defense: Used in daily-wear products to provide a powerful antioxidant shield against damage from UV radiation and urban pollutants.

Formulation Suggestions

Recommended dosage: 0.05% - 0.5%.
Quercetin's efficacy is matched by its significant formulation challenges. Due to its near-zero water solubility and extreme instability to light and oxidation, direct incorporation into conventional formulas is not recommended. For effective delivery and stability, it must be utilized via an advanced delivery system. We strongly recommend encapsulation technologies (e.g., liposomes, niosomes, or solid lipid nanoparticles) to protect the molecule and enhance its penetration. If used directly, it must be in an anhydrous (water-free) base, protected with secondary antioxidants, and packaged in a strictly airless, opaque container.

Our advice is for reference only. Please follow the recommendations of your formulator for actual production.

Product Specification

• INCI Name: Quercetin
• Synonyms: Sophoretin, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one
• CAS No.: 117-39-5 (Anhydrous)
• Molecular Formula: C₁₅H₁₀O₇
• Appearance: Yellow to greenish-yellow crystalline powder
• Purity: ≥95% (by HPLC)
• Solubility: Practically insoluble in water. Soluble in ethanol and aqueous alkaline solutions. Requires advanced delivery systems for cosmetic use.
• Stability: Highly sensitive to light, oxygen, and high pH. Prone to severe discoloration. Requires a protected, stabilized formulation and light-proof packaging.
• Properties: Potent Antioxidant, Powerful Anti-inflammatory, Senolytic (Anti-Aging), Photoprotective.
• Origin: China