Silk Sunscreen with Color Formulation and SPF

Asked by: kayapas29 On: March 02, 2014 Product Type: Cosmetics

Question

Can you provide the formulation for a silk sunscreen with color and specify its SPF?

The formula should include details on the sunscreen base (chemical or physical), the foundation powder part (including types like Silk Mica Powder, Iron Oxides, Titanium Dioxide, or EasyMix versions), the mixing method, and how to achieve the 'silk' texture (e.g., using AminoSilk). Please also clarify the SPF value for the provided example formulation.

Answer

Silk Sunscreen with Color Formulation

Based on the discussion, the formula for silk sunscreen with color involves combining a sunscreen base with a foundation powder mixture. Here is a summary:

1. Sunscreen Base

You can choose either a chemical or physical sunscreen base. An example using chemical sunscreens was provided:

  • Avobenzone 5%
  • Octisalate 5%
  • Octocrylene 10%
  • Cyclomethicone 10%
  • Dimethicone 5%
  • Light Cream Maker 2%
  • Water 63%

2. Foundation Powder Part

This part adds color and coverage. It typically includes:

  • Silk Mica Powder (Matte) 3-4%
  • Iron Oxides Yellow (Ultra-fine, Coated) (percentage depends on desired shade)
  • Titanium Dioxide Micronized (percentage depends on desired shade, used to lighten)

Alternatively, you can use EasyMix versions for easier blending, such as White Iron Oxides EasyMix and Yellow Iron Oxides EasyMix. The total amount of the powder mixture is typically around 5% of the final formula.

Mixing Method

Prepare the sunscreen base first, then add the prepared foundation powder mixture into the cream and blend until well combined.

Achieving the "Silk" Texture

To get the smooth, silky feel, you can add AminoSilk to the finished sunscreen cream and blend it in.

Comparison of Powder Ingredients

  • PowderCream: Provides slipperiness, a dry feel, and oil absorption but no coverage.
  • Silk Mica Powder: Provides slipperiness, a dry feel, and oil absorption (less than PowderCream) but does provide coverage.

Often, a combination of powders is used. BB Micro Silk is another option mentioned for soft-focus and wrinkle concealing.

SPF

The specific SPF value for the example chemical sunscreen formula provided was not explicitly stated in the discussion.