Razor burn is simply the irritation of your skin after shaving, which can irritate the hair follicles, causing redness, bumps, or a rash. It's often a result of the hair growing back, but not breaking through the skin (ingrown hair).
I get so many questions from people asking about which ingredients to use with their face masks. The masks are created to be used with all skin types since you can customize it with different liquids. Here's a list of suggested liquids to use.