Alpha-Arbutin

Product Description

Green Stone Swiss supplies high-purity Alpha-Arbutin manufactured under strict GMP-aligned quality systems, ensuring consistent batch-to-batch performance for professional cosmetic and personal care brands worldwide. Our direct factory supply model delivers reliable bulk quantities with full technical documentation and free sample support.

Alpha-Arbutin is the alpha-glucoside of hydroquinone, supplied here as the alpha isomer rather than beta-arbutin. In leave-on care it is used for uneven tone and localized dark spots, where formulators want a water-soluble active associated with tyrosinase pathways. The material is a white powder that dissolves in water.

Spot serums and tone essences continue to call for this INCI because the isomer, assay, and dose are straightforward to specify. Cosmetic-grade Alpha-Arbutin is a practical bulk active for brands building a focused brightening range.

Product Specification

• INCI Name: Alpha-Arbutin
• CAS No.: 84380-01-8
• Molecular Formula: C₁₂H₁₆O₇
• Molecular Weight: 272.25 Da
• Appearance: White crystalline powder
• Purity: Typical ≥99%
• Solubility: Soluble in water
• Suggested pH: 4.0–6.5 in finished systems
• Storage: Store in a cool, dry place; protect from light and moisture

Key Benefits & Applications

Alpha-Arbutin is a water-soluble brightening active used in spot-care and even-tone leave-on systems.

• Used in serums targeting localized discoloration
• Supports even-tone formulas that call for a tyrosinase-pathway active
• Dissolves in the water phase of essences, gels, and light emulsions
• Distinct from beta-arbutin; specify the alpha isomer on the COA
• Typical use level: 0.5–2.0% in facial leave-on formulations

Formulation Guidelines

Follow these guidelines to keep Alpha-Arbutin dissolved in a mildly acidic system.

• Suggested Use Level: Typical 0.5–2.0% in facial leave-on formulas
• pH Range: Suggested 4.0–6.5; avoid strongly alkaline conditions
• Addition: Dissolve in the water phase during cool-down, below 40°C
• Stability: Protect from light and high pH; confirm the alpha isomer assay on each batch
• Combine with Kojic Acid when a second spot-care active is needed in the same chassis.