I think this product is the best for scar cover up. I've used a few products for this, and none have really worked as well as this products. My scarring is not bad at all, but there is one spot that isn't really bad, but I like to cover it up so nobody really worries about it or asks me about the scar. Overall, it's not hard to apply this product, and it is very effective, I haven't had any side effects, and hopefully nobody else will. Effectiveness This product works exactly one hundred percent. It is perfect, it is the best scar cover up that I have used so far, and it really covers it up with no problems. Ease of Application Application is very easy. Any person should be able to figure out how to use this product and not have any problems doing so. Convenience Very convenient, small, so not hard to put it in a bag, or glove box of your car, and keep it with you. Side Effects I haven't had any side effects. It seems pretty harmless, and I use it all the time without any problems.