Formulation Feedback

Regarding your proposed formula for combination skin with premature wrinkles, incorporating Perfect-C, Centella Asiatica Extract, Repair Activator, Activated Resorcinol, Tranexamic Acid, EDTA, preservative, and using Pro Polymer Silk as the thickener:

• Ingredient Compatibility: The ingredients in your formula are generally compatible and can be mixed together.

• Oiliness and Texture: You are using Perfect-C at 5%, which is an oil-soluble Vitamin C. This concentration, combined with the other ingredients, might contribute to an oily or heavy feel, especially if you prefer a light, fast-absorbing gel texture. As suggested previously, reducing the concentration of Perfect-C (e.g., to 3%) could help mitigate this.

  Adding Matte Silica is a valid approach to reduce the oily or sticky feeling of the formula and achieve a smoother, more matte finish. It can help absorb excess oil on the skin. Whether it achieves the desired texture and feel for your specific skin will require testing.

• Usage (Day/Night): This formula is suitable for both daytime and nighttime use.

Overall, the formula contains potent ingredients targeting wrinkles and skin brightening. You can proceed with mixing, keeping in mind the potential oiliness from Perfect-C at 5% and the option to add Matte Silica to improve the texture based on your preference.