Overview
Alpha Arbutin is a water-soluble cosmetic ingredient used by formulators to support the appearance of a more even, brighter-looking complexion in leave-on products. Pure, concentrated ingredient for formulating. Not a finished cosmetic product.
Key Specs
- INCI: Alpha-Arbutin
- CAS: 84380-01-9
- Also Known As: α-Arbutin
- Country of Origin: —
- Form & Appearance: White crystalline powder; odourless
- Assay/Purity: ≥98% (HPLC)
- Solubility: Water-soluble; soluble in glycols (e.g., propylene glycol, glycerin); insoluble in oils
- Usage Rate %: 0.2–2.0%
- pH Stability: Typically used at pH ~4.5–6.5
- Heat/Processing: Add in cool-down below ~40 °C; avoid prolonged heating
- Melting Point: ≈203–206 °C
- Grade/Allergen: Cosmetic grade; vegan-friendly
Applications
- Serums
- Lotions & creams
- Gels
- Toners/Essences
- Spot treatments
- Sheet masks
How to Use
- Phase & Dissolution: Water phase; pre-dissolve in distilled water or a water/propylene glycol mix until clear.
- When to Add: Add during cool-down below ~40 °C.
- pH Window: Aim for finished product pH ~4.5–6.5.
- Compatibility: Compatible with most humectants, thickeners, and mild acids; avoid strong oxidizers and extreme pH.
Troubleshooting: If precipitation or cloudiness occurs, increase water/glycol ratio or warm gently (<40 °C) to re-dissolve; if browning over time, keep pH ~5–6 and add antioxidant/chelator.
Storage & Shelf Life
- Store tightly closed in a cool, dry place away from heat and light.
- Typical shelf life: —
Safety & Handling
FOR EXTERNAL USE ONLY. Not a finished cosmetic product. Use appropriate PPE and avoid inhalation of powders. Consult SDS.
