Free of biologically harmful chemicals: no avobenzone, oxybenzone, paraben, phthalate, paba and 1,4 dioxane free or UV chemical absorbers. Highest - SPF 50 plus, water resistance (80 minutes), broad-spectrum coverage allowed by the FDA. Non-nano formulation average particle size >100micron, non-aerosol formulation (high concern of both ineffectiveness and particulates being inhaled). Applies and absorbs easily non-oily feel does not have an obtrusive smell that many organic sunscreens have