Replacing SPF Protect Ultra I with SPF Protect Ultra II in Water-in-Oil Sunscreen

Based on the staff replies:

• Compatibility with Water in Oil EZ: Yes, SPF Protect Ultra II can be mixed with Water in Oil EZ, provided the oil phase does not exceed 35%.
• Texture and dissolving: SPF Protect Ultra II does not require LipidSoft to dissolve. According to the recommended formula on the website, it will have some stickiness, which is common for chemical sunscreens.
• Improving texture: You can add LipidSoft or powders to improve smoothness, within the limits of Water in Oil EZ's emulsification capacity. The staff recommends adjusting texture with water and powder emollients like PowderCream (5%) for a lighter feel and reduced risk of clogged pores compared to regular LipidSoft or LipidSoft Palm.
• Percentage for SPF 40 PA+++: For approximately SPF 40 PA+++, the staff recommends using 10% SPF Protect Ultra II together with 10% Zinc Oxide 200nm EasyDisperse.
• Comparison between SPF Protect Ultra I and II: The smell and color are similar. At the same concentration, SPF Protect Ultra II is stickier than SPF Protect Ultra I. However, since SPF Protect Ultra II is used at a lower concentration for the same SPF, it offers more flexibility for formula development and texture adjustment. Yes, you can replace I with II by reducing the proportion of II and increasing water or LipidSoft (while staying within the limits of Water in Oil EZ).