Do You Need Sunscreen Under a Beard?

Men ask me this constantly, and the honest answer is: partly, and the "partly" is the dangerous part.

I spent years in cancer research before I made a single cosmetic, so this is the article on this site I care most about being accurate.

Yes, a beard blocks some UV

Facial hair does provide measurable physical shielding, and researchers have measured it. The protection is real but highly variable — it depends on how dense the beard is, how long it is, and critically on the angle of the sun relative to the hair. A thick, long beard at midday shields considerably more than a short, patchy one in late afternoon.

The number varies so much across conditions that quoting a single figure would be misleading. The useful takeaway is directional: some protection, less than most men assume, and least when the beard is short.

It is also not evenly distributed, which is the actual problem.

The places a beard doesn't protect

These are the sites where UV damage and skin cancers most often turn up on a face, and a beard covers essentially none of them:

• The lips — particularly the lower lip, which catches the most direct sun. Lip skin has almost no melanin and it is a recognised site for squamous cell carcinoma.
• The ears — the tops of the ears especially, and they're missed by almost everyone.
• The nose and upper cheeks — above the beard line, taking direct overhead sun.
• The neck — where beards thin out, and where the skin is already among the most sun-damaged on the body.
• The scalp, if it's thinning. Unrelated to the beard, and frequently ignored.

And UV doesn't only come from overhead. It reflects — off water, sand, snow, concrete — and reflected UV comes in at angles a beard is poorly positioned to intercept.

The practical answer

• Yes, wear it. On the nose, cheeks, ears, neck and forehead as a minimum.
• Use a lip balm with SPF. The most-skipped step and one of the highest-value ones.
• A fluid or spray works better than a thick cream if you have a beard — a heavy lotion is unpleasant to work through hair and most men give up rather than persist.
• Mineral or chemical both work. Mineral filters can leave a white cast in facial hair, which is worth knowing before you buy.
• Don't skip the neck. It's the single most commonly missed area on a bearded face.

The thing I'd rather you take from this than any product

A beard hides skin. That is the real risk, and it has nothing to do with UV blocking.

Skin you can't see is skin you don't check, and lesions found under facial hair are frequently found later than they would otherwise be. So once a month, in decent light, run your fingers through it and actually look at the skin underneath.

Things worth showing a doctor:

• A sore or scab that doesn't heal within a few weeks
• A new lump, or an existing mole changing in size, shape, colour or border
• A patch that bleeds easily, crusts and recurs in the same place
• A persistent rough or scaly patch
• A hair follicle that stops producing hair in one small spot for no obvious reason

None of that is a reason to be anxious. It's a reason to look. Almost everything found early on a face is straightforward to deal with, and almost everything found late is not.

We don't make a sunscreen and this article isn't selling you one. Buy any broad-spectrum SPF 30 or higher that you'll actually use.

General information, not medical advice. If you notice a changing or non-healing lesion anywhere on your skin, see a doctor — don't wait.