I have used them both and both were very effective. The towelettes are convenient and easily carried and can be used discretely. The Mosquito Milk in the roll on is great to carry in the glove compartment of the car and use just before going out. I like to leave it in the car so I know it is always there if I need it as sometimes I might forget to take the towelettes or need to apply a larger dose depending on the surroundings.