Sunscreen Gel Formulation Issue (Liquid Texture)

Asked by: alphal3et On: November 28, 2014 Product Type: Cosmetics

Question

I am trying to make a sunscreen gel using the following formula, but it turned out liquid instead of a gel. Could you please explain why this happened and how I can fix it?

Formula:

  • cyclomethicone 40%
  • lipid soft lite 27%
  • zinc 20%
  • titanium dioxide 10%
  • powder cream 2%
  • light cream maker 1%

Answer

Regarding the white powder residue on the product, as the Staff mentioned, it is likely due to the lid not being sealed properly. We recommend that you contact care@myskinrecipes.com with photos of the damaged product and your order number (or name-surname of the buyer) for a replacement.

Regarding the sunscreen gel formula that turned out liquid, as cosmeceutical7 explained, the issue lies with the formula itself:

  • Formula Problem: The formula you provided (cyclomethicone 40%, lipid soft lite 27%, zinc 20%, titanium dioxide 10%, powder cream 2%, light cream maker 1%) consists almost entirely of oils, silicones, and powders, with no water phase.
  • Reason for Liquidity: Light Cream Maker functions by emulsifying (binding) the water phase and oil phase together to form a cream or gel. Since your formula lacks a water phase, Light Cream Maker cannot perform its function, resulting in a liquid consistency.
  • Recommendation: Creating a stable sunscreen gel or cream with high levels of Zinc Oxide and Titanium Dioxide (30% combined) that is stable, doesn't separate, and has a good texture is quite complex. It requires specific emulsifiers or gelling agents and dispersing agents designed for formulas with high powder content. Light Cream Maker is not suitable for this formula.

We recommend studying or starting with example sunscreen formulas containing Zinc Oxide and Titanium Dioxide that provide detailed ingredient lists and instructions. Look for formulas that use emulsifiers or gelling agents suitable for creating stable gels or creams that can effectively suspend high levels of powders, as advised by the staff.