Highly Waterproof Sunscreen Formula for Face and Body

Yes, the formula you proposed can be made, and the staff has provided a valuable modification to significantly enhance its waterproof properties.

The original formula included Mineral Oil, which the staff recommended removing. To achieve a much higher level of water resistance, they suggested adding 3% of Polyethylene Wax.

Polyethylene Wax is effective in creating a protective film on the skin, which is key to making a Water-in-Oil formula highly waterproof.

Based on the staff's recommendation, the modified formula for a highly waterproof sunscreen suitable for both face and body is:

• SPF Protect Ultra II 15%
• Water-in-Oil EZ™ 4%
• Cyclopentasiloxane (Low-Odor Cyclomethicone) 10%
• Polyethylene Wax 3%
• Water (remaining 68%)

This adjusted formula is designed to provide the desired high level of water resistance for application on both the face and body.