Description
Description
Kojic Dipalmitate is the di-palmitate ester of kojic acid and was developed to improve oil-phase compatibility and handling stability relative to free Kojic Acid. The lipophilic structure makes it suited to emulsions, creams, anhydrous systems, and oil-rich brightening formulations in which water-soluble Kojic Acid would be difficult to stabilize.
Chemical & Technical Profile
| INCI / Identity | Kojic Dipalmitate |
|---|---|
| CAS No. | 79725-98-7 |
| Molecular Formula | C38H66O6 |
| Molecular Weight | 618.98 g/mol |
| Physical Form | White to off-white crystalline powder |
| Solubility | Oil-soluble; practically insoluble in water |
| Functional Category | Lipophilic kojic-acid derivative / skin-conditioning active |
Mechanism of Action / Technical Function
Esterification masks the hydroxyl groups responsible for the strong copper-chelating behavior of free Kojic Acid, so Kojic Dipalmitate should not be considered a simple potency-equivalent replacement. Its cosmetic performance depends on delivery, hydrolysis behavior, skin partitioning, and the complete formulation. The material is best treated as an oil-soluble tone-support active with a distinct stability and delivery profile.
Formulation Guidelines
Dissolve completely in the heated oil phase or in a suitable lipophilic carrier. Ensure the processing temperature is sufficient for dissolution but avoid unnecessarily long hot holds. During cool-down, monitor for crystallization because marginal oil-phase solvent capacity can produce delayed crystal formation. Select emollients with adequate solvency and confirm that the emulsifier system remains stable at the chosen active level. Do not disperse the powder directly into water.
Compatibility & Stability
Monitor crystallization, graininess, phase separation, color, and odor. Low-temperature cycling is essential because a formula that is clear or smooth immediately after manufacture may crystallize during storage. Light-protective packaging is preferred.
R&D, Scale-Up & Quality Control
R&D qualification of Kojic Dipalmitate should include identity, oil-phase clarity, crystal formation, and color. For manufacturing scale-up, define and control Kojic Dipalmitate dissolution temperature, emollient solvency, and controlled cooling rather than transferring only the ingredient percentages. The batch is technically acceptable when the lipid phase remains crystal-free and the emulsion shows no graininess after cold cycling.
Packaging, Shipping & Storage
Supplied in a sealed aluminum pouch. Store tightly closed, cool, dry, and protected from direct light and prolonged heat.
Applications
Brightening creams, emulsions, facial oils, anhydrous serums, balms, spot-care products, and multi-active tone-evening systems.
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