Here's how it works: A razor is a sharp blade that cuts the hair off close to the skin. Shaving removes the tip of the hair shaft that pokes out of the skin, but the hair grows back. Your skin might stay smooth for as little as a day or as long as 3 days.
Good stuff about it: it is a low-cost way to remove hair. You can do it at home. All you need is a razor, some warm water, and some soap, shaving foam, or gel. Or you can use an electric razor, which is easier to use and less likely to cut your skin than a regular razor.
Not-so-good stuff about it: Razors are sharp, so you can cut yourself, especially when you're just learning how to do it. You also can get irritated skin or other problems, such as razor burn, bumps, nicks, cuts, skin infections, or painful ingrown hairs. Ingrown hairs happen when a hair starts growing into the surrounding tissue, instead of up and out of the skin. Also, shaving doesn't last long and when the hair grows back, it may feel stubbly.