Two hour reapplication guidance is FDA mandated language for every sunscreen label including Ultra Veil's. To opt out of this rule, companies must submit to FDA data proving a longer duration of protection and request an altered label. This is an expensive and impractical endeavor; approval,if it comes at all, is often greatly delayed.
Ultra Veil maintains its SPF rating (which is the highest recognized by the FDA) after 40 minutes in a water bath. It provides SPF protection that lasts well beyond two hours in most circumstances and, for non-strenuous circumstances associated with most lifestyles, Ultra Veil provides SPF protection that lasts all day. Ultra Veil should be reapplied as needed. Because it is water resistant for more than 40 minutes, reapplication at that frequency during prolonged periods of swimming or heavy perspiration is recommended.