Recommended Physical Sunscreen Ingredients

Based on your requirement for 100% physical sunscreen ingredients that absorb quickly and leave minimal to no white cast, even at a higher cost for personal use, here are some options focusing on specially treated or dispersed forms of Zinc Oxide and Titanium Dioxide. These forms are designed to minimize the typical whitening effect of physical sunscreens while providing effective UV protection.

Here are some specific ingredients that fit your criteria:

• Zinc Oxide 35nm Liquid: This is a liquid dispersion of nano-sized Zinc Oxide (35nm). It is designed for easy mixing in formulations, feels soft on the skin, adheres well, and does not cause whiteness. It's particularly suitable for water-in-oil emulsion systems. It provides excellent UVA protection and should be combined with Titanium Dioxide for broad-spectrum coverage.
• Zinc Oxide Transparent Dispersion (C12-15 alkyl benzoate Base): This nano-sized Zinc Oxide dispersion is easy to mix into oil or silicone phases and does not make the skin white. It's suitable for sunscreen formulations where no whiteness is desired.
• Zinc Oxide Transparent Dispersion (Isopropyl Palmitate Base): Similar to the C12-15 alkyl benzoate base dispersion, this nano-sized Zinc Oxide is easy to mix into oil or silicone components and helps prevent whiteness.
• Zinc Oxide 40nm Dispersion (Water Base): This is a water-dispersible nano Zinc Oxide, easy to mix into the water phase of a formulation. It provides UVA/UVB protection with a lightweight feel and minimal whiteness.
• Titanium Dioxide Transparent (15nm, Water-Dispersion): An ultra-small particle (15nm) Titanium Dioxide coated for good dispersion in water. It's suitable for water-based or oil-in-water formulations that need sheer coverage and a liquid texture, without causing whiteness.
• Titanium Dioxide Transparent (10nm, C12-15 Alkyl Benzoate Base): This small particle size (10nm) Titanium Dioxide is dispersed in C12-15 Alkyl Benzoate, making it easy to mix into oil phases. It helps prevent whiteness in sunscreen products.
• Titanium Dioxide Transparent (15nm, Cyclopentasiloxane Base): Another small particle size (15nm) Titanium Dioxide dispersed in Cyclopentasiloxane, suitable for oil-dispersible formulations that aim for no whiteness.
• Titanium Dioxide Transparent (15nm, C12-15 Alkyl Benzoate Base): This version contains a higher percentage of Titanium Dioxide (50-55%) and is dispersed in C12-15 Alkyl Benzoate, suitable for oil-dispersible formulas with minimal whiteness.
• Titanium Zinc NanoLiquid™ DEC (non-white, low viscosity): This is a blend of nano Titanium Dioxide and Zinc Oxide dispersed in Diethylhexyl Carbonate. It's a purely physical sunscreen liquid that is non-white, has low viscosity, and provides high full-spectrum UVA/UVB protection with a good texture.

Key Considerations for Formulation:

• Using a combination of Zinc Oxide and Titanium Dioxide is recommended to achieve broad-spectrum protection covering both UVA and UVB wavelengths effectively.
• The choice between oil-dispersible and water-dispersible forms will depend on the type of emulsion you plan to create (water-in-oil or oil-in-water).
• Nano-sized particles and effective dispersion are crucial for minimizing the white cast and improving the feel of the sunscreen on the skin.

These advanced forms of physical sunscreen ingredients offer superior aesthetics compared to traditional, larger particle size options, making it possible to create a comfortable, non-whitening 100% physical sunscreen.