From here
Zinc Oxide 35nm Liquid to
Zinc Oxide 35nm average size, easiest to mix. can be added to any formula and people to match Get a highly effective sunscreen formula, not white, very light on the skin.
so I suspect
Zinc Oxide 35nm Liquid Substance You can mix it into the base cream or straight away without the heat of 70 degrees like
Titanium Dioxide 15nm Liquid is that right? Should write on the product page as well because of
Titanium Dioxide 15nm Liquid also says
, but from the example, it has to be used to help with heat anyway. So it sounds a bit contradicting. Because mixing using heat seems difficult for many people. I'm disturbed.