There is no special sunscreen for under eye area . U can use regular sunscreen . Only care needed is protect eye while applying sunscreen application because it might give u irritation . Apply a small drop in under eye area , half hour before leaving outdoors. Most important of physical sun protection, wear UV protected sunglasses, or in case of spectacles, UV protects lenses n glasses are available . There are many good sunscreen available like neutrogena range, suncross range