日焼け止め / ひやけどめ (Hiyakedome) - Sunscreen
Japanese sunscreens have a very high SPF (Sun Protection Factor) between SPF35 - SPF 50, as well as something called PA (Protection Factor A).
PA measures the strength of protection from the UVA (Ultra Violet A) rays which damage the deeper layers of the skin and can cause premature aging of the skin. PA is measured in plus signs not in numbers. PA+ is the lowest protection while PA++++ is the highest protection rate.
Sunscreen is most effective when reapplied frequently.
"Sunscreen, sunscreen, sunscreen!!! This is by far the most important step in your daily routine. The sun’s UV rays cause real harm to your skin cells and can even lead to serious illnesses."