Shaving your head is not the same as shaving your face, mainly because you cannot see half of what you are doing and the scalp has its own curves. Done right, it is quick and smooth. Done in a hurry with a dull blade, it is a field of nicks and razor burn. Prep and patience do most of the work.
Prep First
Never take a blade to a dry head. Shave after a shower, when the skin is warm and the hair is soft, or wet the scalp with warm water for a few minutes first. Use a shaving cream or gel so you can see where you have been and the blade glides. A sharp blade matters more here than anywhere, since a dull one drags across a curved scalp and catches.
Which Way to Shave
Go with the grain first, in the direction the hair grows, for the first pass. Chasing a perfectly smooth finish by going against the grain straight away is how you get razor burn and ingrown hairs on the scalp. If you want it closer, re-lather and take a second, careful pass, but for most people with the grain is enough and far kinder to the skin.
"The back of your head is all feel, not sight. Map it slowly with your free hand and shave in short strokes, and stop trying to rush the part you cannot see."
Handling the Back
The back and crown are the hard part because you are working blind. Go slow, use your free hand to feel for missed patches and to keep the skin taut, and work in short strokes rather than long confident sweeps. A second mirror helps you check, but touch tells you more than sight back there. This is the section to never rush.
After the Shave
A freshly shaved scalp is exposed skin and needs the same aftercare as a shaved face. Rinse with cool water, and use a soothing balm or a light moisturizer rather than a high-alcohol splash that stings and dries. Give it a few minutes before putting on a hat so the skin can settle.
Sunscreen Is Not Optional
A bald scalp has no hair to shield it, so it burns fast and it is a spot people forget. Any time you are outside, sunscreen on the scalp is as important as on your face, and skipping it is how the top of the head ends up sunburned or worse over years. Make it part of the routine, not an afterthought.


