My Skin Recipes Liquid Foundation Ingredients and SPF

Here are the specific ingredients from the My Skin Recipes formula you asked about:

• Oil Thick™: Based on the formula example, the correct product is Oil Thick™ Hard.
• Mineral Oil: The product linked and used in the formula example is Mineral Oil (Paraffinum Liquidum) Light (26cst).
• Beige Iron Oxides EasyMix™: The correct product is Beige Iron Oxides EasyMix™.
• Silk Mica Powder ชนิดด้าน (Matte): The product used in the formula example is Mica Powder (20 Micron, Methicone Coated).
• Butylene Glycol: The formula uses Butylene Glycol. You asked if you can use Propylene Glycol instead. While both are glycols and solvents, Butylene Glycol is generally considered more gentle and less irritating than Propylene Glycol. The original formula specifies Butylene Glycol.

Regarding your questions about SPF:

• SPF of this formula: The formula you listed includes Titanium Dioxide, which is a physical sunscreen ingredient and provides UV protection. However, the exact SPF level of the complete formula is not provided and would need to be determined through testing.
• How to get SPF 50 PA+++: To achieve a high level of sun protection like SPF 50 PA+++, you would typically need to include specific grades of UV filters, such as certain types of Titanium Dioxide and Zinc Oxide, at higher concentrations than listed in this base makeup formula. Sunscreen grades of these ingredients are designed for optimal UV blocking efficiency.