Kaempferol 98% Powder

Kaempferol, Kaempferol 98% powder, CAS 520-18-3, Fructus Sophorae extract, Sophora japonica extract, natural flavonol API, antioxidant botanical, skin soothing extract, light yellow powder, bulk Kaempferol wholesale

Factory supply 98% purity Kaempferol powder CAS 520-18-3 from Fructus Sophorae. Premium natural flavonol API for antioxidant, skin soothing, and brightening cosmetic formulas.



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✓ cGMP Standard Botanical Extract Supplier            ✓ ISO 9001:2015 Certified Facility            ✓ Third-Party Lab Verified
Origin: Factory Direct Manufacturer

Kaempferol 98% Bulk Supply

Custom Botanical Extraction • High-Purity Natural Flavonol Active

⚠            Declaration:            This product is industrial cosmetic and nutritional raw material only, not finished retail goods. All formula development must be completed by professional R&D technicians.
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Standardized ≥98% Purity via HPLC Verification

CAS No.520-18-3
Purity (HPLC)≥ 98.0%
Molecular FormulaC15H10O6
Molecular Weight286.23 Da
Botanical SourceFructus Sophorae (Sophora japonica)
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Scientific Overview & Manufacturing Excellence

We specialize in the contract manufacturing and stable bulk supply of 98% Kaempferol, a highly advanced natural flavonol meticulously extracted and refined from premium Fructus Sophorae (the dried flower buds and fruits of Sophora japonica). Recognized globally by elite dermatological formulation scientists, Kaempferol serves as a cutting-edge botanical active renowned for its exceptional free-radical scavenging capacity, profound soothing effects on the skin barrier, and comprehensive complexion brightening properties.

Our facility utilizes state-of-the-art botanical extraction and multi-stage crystallization technologies to isolate this specific flavonoid monomer. The finished product is a uniform light yellow powder characterized by outstanding biological bioavailability and structural stability. All production processes are executed in GMP-standard dust-free workshops with full ISO9001 certification and complete batch traceability, ensuring a strict ≥98.0% purity index via precise HPLC detection, entirely free from unrefined plant chlorophyll or crude impurities.

Target Application Scenarios & Formulation Benefits

Our 98% HPLC-grade Kaempferol complies with stringent international cosmetic and dermatological raw material safety regulations. Its multi-target restorative profile makes it widely utilized in:

  • ✔ Powerful Anti-Oxidation & Anti-Aging: Acts as a highly potent antioxidant that aggressively neutralizes reactive oxygen species (ROS) and free radicals. It shields the dermal matrix from oxidative stress, thereby delaying the visible signs of skin aging.

  • ✔ Intense Soothing & Inflammation Relief: Deeply soothes localized redness and subdues inflammatory pathways. It rapidly relieves discomfort caused by environmental aggressors, making it a powerful calming agent for highly sensitive or reactive skin.

  • ✔ Tone Brightening & Radiance Restoration: Actively fades epidermal dullness by promoting a healthier micro-environment. It significantly brightens the overall complexion and restores the skin's natural, vibrant radiance.

Technical Specifications & Logistics Standard

Product IdentityKaempferol (Antioxidant & Skin Soothing API)
Botanical SourceStandardized Fructus Sophorae Extract
Testing Method & PurityHPLC Analysis; ≥ 98.0% Monomer
Physicochemical Properties• Appearance: Light yellow powder
                           • Moisture: ≤ 5.0%
                           • Ash Content: ≤ 1.0%
                           • Solubility: Soluble in ethanol, DMSO, and hot glycols; slightly soluble in water
Heavy Metals & SafetyHeavy Metal (Pb) ≤10ppm; Arsenic (As) ≤2ppm. Compliant with EU & FDA safety standards.
Packaging Configurations• Sample Scale: 1kg vacuum light-proof aluminum foil bag
                           • Bulk Commercial: 25kg sealed export fiber drum
                           *Private label branding and custom trial specs available.
Storage & Shelf LifeStore sealed in a cool, dry & dark environment. Validity is 24 months.

Precautions & Formulation Guidelines

  • Solubility Profile: Kaempferol is primarily lipophilic. For seamless integration, formulators should pre-dissolve the powder in suitable cosmetic solvents such as warm glycols (propanediol, butylene glycol) or ethanol solutions prior to incorporating it into emulsion bases.

  • Color Consideration: The extract's natural light yellow color is a hallmark of highly concentrated flavonols. While it disperses easily at standard clinical dosages (typically 0.1% - 0.5%), formulators should account for a slight, warm tint in purely white or transparent bases.

  • Compatibility Suggestion: It demonstrates outstanding formulation synergy when combined with other antioxidants or soothing agents (such as Vitamin C derivatives, Niacinamide, or Bisabolol) to construct multi-pathway anti-aging and brightening regimens.

  • Production Operation Protection: Personnel should wear standard dust masks and gloves during weighing and feeding to prevent the inhalation of fine botanical powder.

Frequently Asked Questions (Procurement & Formulation)

What makes 98% Kaempferol superior to crude Sophora japonica extract?
Crude extracts contain a complex mixture of non-active plant fibers, resins, and varying levels of flavonoids, which can destabilize cosmetic emulsions. Our 98% Kaempferol is a highly purified, isolated flavonol monomer. This guarantees exact formulation dosing, maximum clinical efficacy for antioxidant protection, and uncompromised aesthetic stability in high-end skincare.
How does Kaempferol fade dullness and brighten the complexion?
Kaempferol is an exceptional free-radical scavenger. By neutralizing the oxidative stress that leads to cellular damage and pigment accumulation, it protects the skin from environmental dulling. Additionally, its potent soothing properties reduce the underlying inflammation that often triggers post-inflammatory hyperpigmentation (PIH).
Is the light yellow powder going to stain the skin?
No. The light yellow hue is a natural characteristic of pure flavonols. At the standard recommended usage levels (0.1% to 0.5%), the active ingredient integrates perfectly into the skin's lipid barrier without leaving any permanent color residue or staining on the epidermal surface.
Do you supply finished cosmetic creams or retail antioxidant serums?
No. We are strictly an upstream B2B raw material manufacturer and supplier. We provide bulk Kaempferol 98% powder to empower pharmaceutical companies, cosmetic brands, and laboratories to manufacture their own retail products. We do not sell finished retail formulations.
Can you provide samples and complete test certificates for customs clearance?
Yes, we provide sample testing for quality and formulation verification for qualified B2B buyers. Each commercial bulk order comes with an official Certificate of Analysis (COA) specifying HPLC test results, commercial invoice, packing list, and MSDS to ensure smooth global customs clearance and product filing.

Shaanxi Sunrise Pharmaceutical Co., Ltd.

Senior Independent Site Operations Specialist: Betty

📧 Email: betty@pharma-sunrise.com            💬 WhatsApp: +86 18092760627