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
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INCI: Alpha-Arbutin
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CAS: 84380-01-9
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Also Known As: α-Arbutin
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Country of Origin: —
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Form & Appearance: White crystalline powder; odourless
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Assay/Purity: ≥98% (HPLC)
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Solubility: Water-soluble; soluble in glycols (e.g., propylene glycol, glycerin); insoluble in oils
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Usage Rate %: 0.2–2.0%
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pH Stability: Typically used at pH ~4.5–6.5
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Heat/Processing: Add in cool-down below ~40 °C; avoid prolonged heating
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Melting Point: ≈203–206 °C
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Grade/Allergen: Cosmetic grade; vegan-friendly
Applications
- Serums
- Lotions & creams
- Gels
- Toners/Essences
- Spot treatments
- Sheet masks
How to Use
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Phase & Dissolution: Water phase; pre-dissolve in distilled water or a water/propylene glycol mix until clear.
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When to Add: Add during cool-down below ~40 °C.
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pH Window: Aim for finished product pH ~4.5–6.5.
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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.