SunSwill

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Sun protection that isn't chalky

The failure mode isn't buying the wrong sunscreen. It's buying one that feels bad, and therefore never reapplying it.

Heads up: affiliate links below. SunSwill may earn a commission at no cost to you. Nothing here is medical advice or a claim about any product's efficacy — check current destination rules directly before you travel, as they change.

Read the actives, not the front of the bottle

"Reef-safe" is not a regulated term. It means nothing on its own. The active ingredients list is the only reliable signal.

  • Mineral filters — zinc oxide, titanium dioxide. What "reef-safe" usually means in practice, and what's permitted where restrictions apply.
  • Commonly restricted — oxybenzone, octinoxate. These are the filters named in most destination bans.
  • In between — avobenzone, homosalate, octocrylene. Not usually banned, not usually marketed as reef-safe.

Hawaii, Palau, Bonaire, Aruba and parts of Mexico have all introduced measures of some kind, and the specifics differ and change. Some Mexican eco-parks and cenotes enforce stricter rules at the gate. If your destination has rules, mineral is the safe answer.

The four things that decide whether you'll wear it

  • Tinted, for the face. The single most effective fix for white cast, and the reason most people who "hate mineral sunscreen" change their mind. Match roughly to your skin tone.
  • Separate face and body products. The face one is the one you'll skip if it feels wrong. Buy a good one and accept the cost per ounce.
  • A stick for ears, nose and the tops of feet — the three places everyone misses. Not liquid-restricted, either.
  • A hat with a real brim. Between 11 and 3 it outperforms any reapplication schedule.

Application does more than ingredient choice

Most people apply far too little — guidance is roughly a shot glass for full body and a generous half-teaspoon for face and neck. An SPF 50 applied thinly performs well below 50. Reapply every two hours and after swimming or towelling, whatever the bottle claims about water resistance.

Buy it before you go

Resort and airport pricing on SPF is punishing, and the local stock is often not the formulation you want on your face. This is the one item on the entire packing list where buying at the destination reliably costs you.

The full guide to the label rules →