According to Dr. Heather Woolery-Lloyd, a dermatologist and director of the Skin of Color Division in the Department of Dermatology and Cutaneous Surgery at the University of Miami, it is essential to reapply sunscreen every two hours to maintain protection throughout the day. In addition to the face, women should also apply sunscreen to their necks, arms, backs, and legs.
She further explains, “To understand how sunscreen works, think of it as a cup that catches the sun’s rays. A few hours after application, the ‘cup’ is full and can no longer hold any more rays, indicating that its effectiveness has worn off.”
Therefore, reapplying sunscreen is crucial. This action is like replacing the ‘cup’ to continue blocking the sun’s rays instead of letting them penetrate the skin.
In addition to the face, don’t forget to apply sunscreen to your neck, arms, back, and legs.
Applying sunscreen evenly to the body ensures better protection.
Instances When You Must Reapply Sunscreen:
1. After Driving for Extended Periods:
Dr. Woolery-Lloyd states, “People often underestimate their sun exposure while driving. But whether you’re the driver or a passenger, you’re directly exposed to sunlight. Therefore, it’s crucial to reapply sunscreen every two hours.” This is especially important during extremely hot days, as experienced in Vietnam.
Remember to reapply sunscreen after driving for long periods.
2. Before and After Swimming or Beach Visits:
While water-resistant sunscreen is effective, it needs to be reapplied after swimming and drying off with a towel. The towel absorbs the water and inadvertently removes the sunscreen, making reapplication crucial.
It is necessary to apply sunscreen before entering the water.
Reapply sunscreen after spending a prolonged period in the water.
3. When Working or Studying Near Windows:
Even when indoors, your skin can be damaged by sunlight coming through windows. Dr. Woolery-Lloyd advises that if you sit near a window for extended periods, follow the rule of applying sunscreen and reapplying it every two hours (or even sooner).
Remember to apply sunscreen adequately when working or studying near windows.
After applying sunscreen, it is crucial to reapply it after a few hours to prevent aging and darkening of the skin. Additionally, ensure you use the correct dosage and apply it consistently throughout the week to protect your skin effectively. Even on cloudy days, UVA rays can be intense and cause more damage to the skin. So, don’t be complacent about your skin care, ladies!
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