You've just taken a blade to your face so it's important to make sure you soothe & repair afterwards. Think of it like when you work out or play a game of sports. Technically, you should be stretching afterward so that you're in good shape for the next game, right? Well, the same goes for shaving. If you take care of your skin afterward, you're skill will be that much more able to handle your next shave. A post-shave product will help to prevent razor burn, redness and irritation.