Raspberry Ketone Glucoside-CAS 38963-94-9
Product Name: Raspberry Ketone Glucoside
Abbreviation: RKG
INCI Name: Raspberry Ketone Glucoside
CAS No.: 38963-94-9
Grade: Cosmetic Premium Grade (Plant-derived Gentle Brightening & Melanin Inhibiting Special)
Purity: ≥99.0%
Appearance: White Fine Crystalline Powder, Uniform Fineness, No Caking, Odorless, Pure Texture
Molecular Formula: C₁₄H₁₈O₇
Molecular Weight: 298.29
MOQ (Minimum Order Quantity): 25KG
Solubility: Excellent full water solubility, completely soluble in room-temperature water, clear and transparent solution; compatible with water-based, emulsion and cream formula systems, no stratification, no precipitation, no discoloration, easy formula debugging and industrial mass production
Core Efficacy: Efficiently inhibit tyrosinase activity, block melanin synthesis and transfer, fade pigmentation and dullness, improve skin sallowness and turbidity, uniform skin tone, long-term brighten and whiten skin, maintain translucent skin texture
Key Characteristics: Natural plant-derived glycosylated whitening ingredient, upgraded and optimized from raspberry ketone; solves the instability and irritation defects of traditional raspberry ketone; high activity, mild and non-irritating, non-photosensitive, whitening without rebound, safe for long-term use, suitable for all skin types including sensitive skin
Storage Condition: Sealed and stored in dry, cool and ventilated warehouse, avoid high temperature, humidity and strong light exposure; keep tightly sealed after opening to prevent moisture absorption and activity attenuation
Shelf Life: 24 Months
Application: Widely used in whitening brightening essence, anti-sallow lotion, spot fading cream, translucent mask, daily whitening skincare and mild sensitive skin brightening functional cosmetic formulas
Raspberry Ketone Glucoside, Raspberry Ketone Glycoside, Cosmetic Grade Brightening Raw Material, Melanin Inhibition, Anti-sallowness, Gentle Whitening, Translucent Skin, Skincare Raw Material
Raspberry Ketone Glucoside-CAS 38963-94-9
Cosmetic Grade Raspberry Ketone Glucoside (RKG) is a new-generation high-stability plant-derived whitening active ingredient upgraded by glycosylation modification of natural raspberry ketone.
Traditional raspberry ketone has poor water solubility, low formula stability and slight skin irritation, which limits its application in high-end mild whitening products. After glucose molecular grafting modification, RKG achieves full water solubility and ultra-mild skin-friendly properties, while greatly improving antioxidant and melanin-inhibiting activity.
RKG targets the core link of skin melanin metabolism: it can competitively inhibit tyrosinase activity, cut off the biochemical reaction of melanin synthesis from the source, effectively block the transfer and deposition of melanin particles in epidermal cells, and accelerate the metabolism and shedding of aged pigment keratin.
It can comprehensively improve various dull skin problems such as sun darkening, staying up late sallowness, and long-term accumulated turbidity, fade superficial freckles, sun spots and dull pigment marks, and make skin tone uniform, bright and translucent.
Different from quick-acting superficial whitening ingredients, RKG focuses on regulating skin pigment metabolic balance, with long-lasting whitening efficacy and no rebound darkening. It has no photosensitive risk and can be used safely during the day. With excellent formula compatibility and stability, it will not cause discoloration or inactivation in water and emulsion systems, and is a high-quality core raw material for building mild, safe and efficient whitening skincare systems.
Key Benefits
• Glycosylation Upgraded, Higher Stability & Activity: Upgraded from traditional raspberry ketone via glycosylation technology, solving the pain points of poor solubility and unstable activity; whitening and melanin-inhibiting efficacy is significantly improved, with stronger and more durable effect.
• Full-link Melanin Inhibition, Fundamental Whitening: Act on tyrosinase inhibition, melanin synthesis and transfer links, block pigment deposition in all dimensions, improve dullness and sallowness from the source, and avoid superficial temporary brightening.
• Ultra-mild & Non-photosensitive, All-day Safe Use: Plant-derived mild formula, no irritation, no sensitization, no photosensitive risk, available for daytime and long-term continuous whitening care, no rebound darkening.
• Anti-oxidation & Anti-sallowness, Improve Turbid Complexion: It has excellent free radical scavenging capacity, resist skin oxidative dullness, improve glycation and oxidation sallowness, refresh tired and dull skin, and restore translucent skin tone.
• Excellent Water Solubility & High Formula Adaptability: Completely water-soluble, no organic solvent assistance needed, stable in conventional cosmetic pH range, no stratification or precipitation, convenient for formula debugging and mass production.
• Sensitive Skin Friendly, Wide Audience Coverage: Low-burden and high-safety molecular structure, no damage to skin barrier, suitable for sensitive skin, dry skin, oily skin and mixed skin, realizing universal safe whitening.
Applications
• Mild Whitening & Brightening Essence: Core active ingredient of high-end mild whitening essence and translucent serum, achieve full-link melanin inhibition, quickly improve sallow and dull skin, and brighten skin base.
• Anti-sallowness & Uniform Tone Lotion: Added in daily whitening lotion and nourishing skincare products, improve long-term accumulated yellowish and turbid complexion, balance skin tone, and maintain long-term translucent skin state.
• Fade Spot & Pigment Repair Cream: Suitable for light spot cream and acne mark fading cream formulas, target superficial pigment deposition, fade sun spots and dull marks, and refine uneven skin texture.
• Translucent Whitening Hydrating Mask: Applied in brightening mask, daily whitening mask and after-sun repair mask, relieve sun darkening and oxidative dullness, and restore skin luster and translucency.
• Daytime All-weather Whitening Products: Depend on non-photosensitive and mild characteristics to build safe daytime whitening formulas, make up for the defect of traditional whitening ingredients that are limited to night use.
• Sensitive Skin Gentle Brightening Series: Build high-safety mild whitening system for sensitive and fragile skin, avoid irritation and barrier damage, and realize zero-burden whitening and brightening.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Raspberry Ketone Glucoside (RKG) | Compliant |
CAS No. | 38963-94-9 | Compliant |
Appearance | White Fine Crystalline Powder | Compliant |
Purity (HPLC) | ≥99.0% | 99.55% |
pH Value | 5.0-7.0 | 6.0 |
Loss on Drying | ≤0.5% | 0.10% |
Residue on Ignition | ≤0.1% | 0.03% |
Heavy Metal (Pb) | ≤1ppm | 0.2ppm |
Arsenic (As) | ≤0.5ppm | 0.1ppm |
Total Bacteria | ≤100CFU/g | Qualified |
Pathogenic Bacteria | Negative | Negative |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of Raspberry Ketone Glucoside?
A1: The standard MOQ is 25KG, and sample orders are supported for formula testing and whitening efficacy trial production.
• Q2: What certification documents can be provided?
A2: Complete COA, MSDS, heavy metal and microbial test reports and full set of customs clearance documents are available to support export declaration and cosmetic product filing.
• Q3: What is the recommended dosage in cosmetic formulas?
A3: Conventional addition dosage is 0.2%-0.8% for daily whitening lotion and cream; 0.8%-2.0% for high-efficiency brightening and spot-fading essence, adjustable according to whitening and anti-sallowness efficacy requirements.
• Q4: What is the difference between RKG and traditional Raspberry Ketone?
A4: Traditional raspberry ketone has poor water solubility, unstable activity and slight irritation. RKG is glycosylated upgraded, with full water solubility, ultra-mild and non-irritating, stable formula activity, non-photosensitive and longer-lasting whitening effect.
• Q5: Is RKG suitable for sensitive skin formulas?
A5: Yes. RKG is plant-derived and glycosylated mild active, no irritation and no sensitization, low skin burden, which is the preferred raw material for sensitive skin mild whitening products.
• Q6: Can RKG be compounded with other whitening ingredients?
A6: It has excellent synergistic effect with tranexamic acid, nicotinamide, alpha arbutin and vitamin C derivatives, realizing multi-dimensional whitening of anti-sallowness, melanin inhibition and brightening, and greatly improving product efficacy.
• Q7: Do you support stable large-batch supply all year round?
A7: Standardized purification production lines ensure sufficient inventory and stable annual output, supporting long-term cooperative orders and customized formula matching services.
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