There is no serious argument about whether ultraviolet exposure causes skin cancer and photoageing. There is a very large gap between that knowledge and male behaviour, and closing it is worth more than every cosmetic procedure in this publication combined.
1. The gap, and the reasons given
UK survey work has repeatedly found lower sunscreen use among men than among women, alongside higher rates of sunburn in some age groups. The reasons men give are consistent and they are not stupidity. They are:
- It feels greasy or heavy on skin that is already oily.
- It stings the eyes when sweating.
- It interacts badly with shaving, either irritating freshly shaved skin or being removed by it.
- It is understood as a beach product rather than a daily one.
- Nobody has said how much to use, so far too little is used.
- The category is marketed almost entirely to women and to parents.
Every one of those is addressable, and treating them as reasons rather than as excuses is what changes behaviour.
2. What the label means in the UK
SPF measures protection against UVB, the wavelength range responsible for sunburn. SPF 30 filters roughly 97 per cent of UVB and SPF 50 roughly 98 per cent, so the difference is smaller than the numbers imply and is dwarfed by how much is applied.
UVA protection is indicated in the UK by a star rating, or by the letters UVA in a circle, which indicates that UVA protection is at least a third of the labelled SPF. UVA drives dermal damage, so this matters at least as much as the SPF figure for ageing.
NHS guidance for the UK recommends at least SPF 30 with good UVA protection. That is the specification; the rest is preference.
3. Quantity is the whole problem
Laboratory SPF is determined at an application density of two milligrams per square centimetre. Real world application is typically a fraction of that, which means the protection achieved is materially lower than the number on the bottle.
The practical translations are worth memorising. For the face, neck and ears, roughly two finger lengths of product squeezed along the index and middle fingers. For the body, about six to eight teaspoons in total for an adult. And reapplication every two hours during sustained exposure, and after swimming, heavy sweating or towelling, because no product survives those events intact.
4. Choosing something you will actually use
The best sunscreen is the one applied in sufficient quantity every day, so formulation matters more than brand.
| Problem | What to look for |
|---|---|
| Oily or acne prone skin | Fluid, gel or lightweight lotion textures; non-comedogenic labelling; alcohol containing fluids feel lighter but can irritate a shaved face |
| Stinging eyes when sweating | Stick formats around the brow and temples; formulations marketed as sport or sweat resistant |
| Freshly shaved skin | Fragrance free, alcohol free formulations; apply after a bland emollient has settled rather than immediately after shaving |
| White cast on richly pigmented skin | Chemical filter based or hybrid formulations; tinted mineral products |
| Bald or thinning scalp | Spray or stick formats, and a hat, which is more reliable |
| Beard | Fluid formulations that reach the skin; the beard offers partial cover only to the skin directly beneath it |
5. The sites men miss
Consistently: the ears, particularly the upper helix, which is a common site for squamous cell carcinoma in men. The back and sides of the neck, especially in men with short hair. The scalp, in anyone with thinning hair. The backs of the hands, which show photodamage early and are almost never protected. The lips, which need a lip product with SPF rather than sunscreen. And the area below the jaw line, where face application routinely stops.
6. Sunscreen is the third line, not the first
Public health guidance consistently places sunscreen below two other measures, and it is worth restating because men often treat it as the whole strategy.
- Shade, particularly between eleven and three when the ultraviolet index is highest.
- Clothing, including a wide brimmed hat, a collar and long sleeves. A close weave fabric outperforms almost any sunscreen and does not require reapplication.
- Sunscreen, on the skin that remains exposed.
For outdoor workers this hierarchy is also the workplace control hierarchy, and providing sunscreen alone is not an adequate control. See photoageing in men.
7. The objections worth answering
"I need sun for vitamin D." Vitamin D synthesis requires far less exposure than most people assume, and UK guidance recommends considering a supplement in autumn and winter when synthesis is limited by latitude. Deliberate burning is not a vitamin D strategy.
"Sunscreen chemicals are harmful." Filters used in the UK are regulated as cosmetic ingredients and assessed for safety. Some systemic absorption of certain organic filters has been demonstrated in studies designed to detect it, and detection is not the same as harm. Anyone concerned can use mineral filters, which is a reasonable preference rather than a necessary precaution.
"I never burn." Burning is a UVB phenomenon. UVA damage accumulates without any warning signal, and a tan is itself evidence of ultraviolet induced DNA damage rather than protection against it.
8. Making it a habit rather than a decision
The reason sunscreen use is low is rarely a considered choice. It is that it requires a decision every morning, and decisions made daily under time pressure default to not doing the thing.
The interventions that work are habit interventions rather than persuasion. Attach it to something that already happens without thought: immediately after shaving, or immediately before putting on a watch. Keep it where that action occurs rather than in a cupboard. Keep a second one in the car or the work bag, because the failure mode is not refusal but absence.
For outdoor workers, the pattern that survives is application before leaving the house and a stick format carried for reapplication, because a bottle in a van is a bottle that stays in the van. For anyone with a thinning scalp, a hat removes the decision entirely and outperforms any product, which is the most reliable single change available in this whole subject.