Zero Spots Day (Shimi Zero no Hi)

What Is Zero Spots Day?

April 30th is "Shimi Zero no Hi" (Zero Spots Day) in Japan, established by L'Oreal Japan K.K., which operates the dermatologist-backed skincare brand "La Roche-Posay." The date comes from a pun on "shi (4) mi (3) zero (0)," meaning "zero spots," and the day is certified and registered by the Japan Anniversary Association.

Why the End of April?

Sun protection is actually considered most important to start before the height of summer arrives.

• Changing UV levels: UV radiation is said to increase sharply starting around May, reaching levels comparable to midsummer
• The concept of "photoaging": research suggests that roughly 80% of skin aging is caused by UV-induced "photoaging"
• The day's purpose: to raise awareness of sun protection and encourage people to aim for spot-free, "zero spots" skin

About the Brand "La Roche-Posay"

La Roche-Posay was founded in France in 1975 as a skincare brand for people with sensitive skin. The brand's name comes from the village of La Roche-Posay in west-central France, known for spring water rich in selenium, a mineral believed to gently soothe and support healthy skin.

Tips for Marking This Day

• Review your sunscreen and UV-care items and start your sun protection routine
• Learn about "photoaging" and incorporate what you learn into your daily skincare
• Check out everyday sun-protection items like hats and parasols
• Reflect on the condition of your skin and reconsider your lifestyle habits for preventing spots

Preparing Your Skin Before the Height of UV Season Arrives

Many skin spots are said to form gradually over time, built up from daily exposure to UV rays. Let April 30th, right as UV levels begin to rise sharply, be the day you start caring for your skin's future.