Dissolving Kojic Acid Dipalmitate in Cream Formulation

Based on the conversation, the issue with Kojic Acid Dipalmitate not dissolving completely is because it requires heat to properly melt and incorporate into the oil phase of the formulation. Simply stirring at room temperature will not be sufficient.

Here is the user's formula and a recommended mixing procedure based on the staff's advice to ensure proper dissolution and achieve the desired texture:

Formula:

• Water: 46.5%
• Satin Cream Maker: 1.3%
• 4-butyl Resorcinol: 1%
• Disodium EDTA: 0.2%
• Vit. B3 (Niacinamide): 10%
• GlucoBright (N-Acetyl Glucosamine): 5%
• Shea Butter: 11%
• Bisabolol: 1%
• Kojic Acid Dipalmitate: 5%
• MSH White: 5%
• Tranexamic Acid: 3%
• Silicone Gel ultra clear: 10%
• Mild Preserved Eco: 1%

Recommended Mixing Procedure:

1. Phase A (Water Phase): In a heat-resistant container, combine Water, Disodium EDTA, Vitamin B3, GlucoBright, and Tranexamic Acid. Stir until dissolved.
2. Phase B (Gelling/Emulsifier Phase): Add Satin Cream Maker to Phase A. Mix or stir until a cloudy/white gel forms. Heat this phase to 80°C.
3. Phase C (Oil Phase): In a separate heat-resistant container, combine Shea Butter, Kojic Acid Dipalmitate, and MSH White. Heat this phase to 80°C, stirring until the ingredients melt and are well combined into a cream-like texture (it will not become completely clear).
4. Emulsification: While both Phase B and Phase C are hot (around 80°C), slowly add Phase C to Phase B while mixing continuously with a homogenizer or high-shear mixer. Continue mixing until a stable emulsion forms.
5. Cool Down: Continue mixing the emulsion while it cools down.
6. Phase D (Cool Down Phase): When the mixture has cooled down significantly (e.g., below 40°C), add 4-butyl Resorcinol, Bisabolol, Silicone Gel, and Mild Preserved Eco.
7. Final Mixing: Mix thoroughly until all ingredients are evenly dispersed and the cream is homogeneous with the desired soft, smooth, non-sticky lotion texture.

This procedure ensures that the Kojic Acid Dipalmitate is properly dissolved in the oil phase using heat before being emulsified with the water phase, which should resolve the dissolution issue. Heat-sensitive ingredients like 4-butyl Resorcinol are added during the cool-down phase to preserve their efficacy.