Icarus Zenith SPF 50 in a 148ml bone-white bottle with a deep blue cap, beaded with water.

Icarus Zenith SPF 50

Eight hours of open water.

$18 5 oz / 148 ml

Free. One email, when it ships. Nothing else.

Shipping Summer 2027. Nothing is charged today.

What it’s for

The full-day exposure sunscreen. Boats, surf, pool decks, tournament sidelines — anywhere you are wet, drying and wet again for hours. Tested to eighty minutes of water resistance, which is the longest claim a sunscreen is allowed to make, and the reason the bottle is big enough to use properly.

How it feels

A proper lotion, not a spray. It spreads far without dragging, sets matte in about a minute, and does not run into your eyes when you sweat — the single most common reason people stop reapplying at hour four.

Active ingredients

  • Avobenzone 3%
  • Homosalate 10%
  • Octisalate 5%
  • Octocrylene 8%

Organic filters — the reason it disappears.

Also in it, and why

Aloe Barbadensis, Panthenol, Tocopherol.

How to use it

  1. Roughly a shot glass covers an adult body. Apply it dry, fifteen minutes before you go in.
  2. Reapply after eighty minutes in water, immediately after towelling, and every two hours otherwise.
  3. Towelling removes more sunscreen than swimming does. Reapply after the towel, not after the water.

Full ingredients

Every ingredient, in order

Water, Styrene/Acrylates Copolymer, Glycerin, Butyloctyl Salicylate, Diethylhexyl 2,6-Naphthalate, VP/Eicosene Copolymer, Caprylic/Capric Triglyceride, Cetyl Alcohol, Glyceryl Stearate, PEG-100 Stearate, Acrylates/C12-22 Alkyl Methacrylate Copolymer, Dimethicone, Aloe Barbadensis Leaf Juice, Panthenol, Tocopherol, Xanthan Gum, Sodium Hydroxide, Disodium EDTA, Caprylyl Glycol, Phenoxyethanol.