This is a good sunblock to use on children. It covers well, dries fast, and doesn't have a nasty smell like some sunblock sprays do. Scent There is a very light alcohol smell to this product. I think this is why it dries so quickly. It's doesn't have a very strong alcohol smell to it, which means it's not as harsh as other products on the skin. Absorption This goes on quickly and absorb really fast. It's great for children who don't want to stand still long enough to get covered well. Longevity It lasts about as long as any other sunblock, which means it should be applied at least every two hours to get good protection from the sun. Since it's a spray, it's not a hassle to make my kids stop playing to reapply it. Effectiveness My children have never had a sunburn when I have used Banana Boat Quick Dry Sport Sunblock Spray. Which to me says it's a ten where effectiveness is concerned. Ease of Application Banana Boat Quick Dry Sport Sunblock Spray SPF 30 is the easiest sunblock to apply because it's quick dry. All you do is spray it on and go.