Sun-Sensitive Skin: Sunscreen and Habits for Reactive Skin
If sun brings on a rash, itching or stinging, here's how to choose a sunscreen that suits reactive skin, the triggers to watch, and when to get advice.
What is going on
“Sun sensitivity” covers a few things: skin that simply burns or stings easily, an itchy bumpy rash after sun (often polymorphic light eruption), or reactions where sun plus a product or medication causes a flare. The shared theme is that sun exposure brings on symptoms.
Choosing a sunscreen that suits reactive skin
- Mineral (physical) sunscreens with zinc oxide or titanium dioxide tend to suit sensitive and reactive skin, as they sit on the surface.
- Look for fragrance-free formulas, and patch-test a new one on the inner arm first.
- High, broad-spectrum protection, reapplied properly.
Habits that help
- Build sun exposure gradually in spring, rather than a sudden first big dose.
- Hats, shade and UV-protective clothing do a lot of the work.
- If a product seems to flare skin only in sun, suspect a sun-plus-ingredient reaction and review it.
A note on medications
Some medicines increase sun sensitivity. If you have started something new and notice stronger reactions, mention it to your pharmacist or doctor.
When to see a doctor
If you get a recurrent rash after sun, blistering, or a severe reaction, see a GP or dermatologist to identify the type and the right protection.
Tools that help
To check a product, INCIBeauty lets you look up a product and read plain-language notes on each ingredient, with a community that rates them, and a free browser extension like Clearya flags ingredients of concern automatically as you shop online. These rate a product on general criteria rather than against your own list.
Once you know what you are screening for, a personal-list app like ClearaScan lets you save the ingredients you react to once and scan any product to flag only your triggers. It also keeps a Reaction Journal for flare-ups, a shared Care Circle so family or carers can scan for you, and a Trusted Products list for items you have cleared, and it is currently in early access. (Disclosure: our editor co-founded ClearaScan, and we are not paid to mention the others.)