My family goes on vacation to the beach every spring break and I always take my dog with. I used to use the lotion sunscreen on him but it was messy and such a hassle. I saw this product at my local pet store and thought it was such an excellent idea! This product is very easy to use, it eliminates all the mess of using a lotion and it is very quick to apply. Also, my dog does not mind having this applied to him. With actual lotions he would not wanna sit through me rubbing it on him, but this is so quick and easy that he does not mind. I purchased this for the first time a couple years back, and I am still using it when we go on vacations. I would definitely recommend this to anyone with a dog! Quality of Ingredients I'm not sure what all of the ingredients in this product are, but they work wonderfully to keep my dog protected from the sun! Side Effects This keeps my dog from getting sunburned when we on long walks or vacation.