Using a protective sunscreen is one of the most important steps you can take to maintain healthy skin and protect it from the harmful effects of the sun. Sunscreen acts as a shield against the sun’s ultraviolet (UV) rays, which can cause premature aging, sunburn, and increase the risk of skin cancer. Whether you’re spending a day at the beach, running errands, or just walking outside, applying sunscreen should be a non-negotiable part of your daily skincare routine.
Sunscreen works by either absorbing or reflecting UV rays. There are two main types of UV radiation that affect the skin: UVA and UVB. UVA rays penetrate deep into the skin, contributing to aging and the development of wrinkles, while UVB rays are primarily responsible for sunburn. A broad-spectrum sunscreen protects against both types of rays, ensuring comprehensive coverage.
When choosing a sunscreen, look for one with an SPF (Sun Protection Factor) of at least 30. SPF 30 blocks about 97% of UVB rays, providing a solid level of protection for everyday use. If you have fair skin, are prone to burning, or plan to spend extended time outdoors, consider using a higher SPF. It’s also important to reapply sunscreen every two hours, or more often if you’re swimming or sweating, to maintain its effectiveness.
In addition to SPF, consider the sunscreen’s formulation. There are chemical sunscreens, which absorb UV radiation, and physical (or mineral) sunscreens, which sit on top of the skin and reflect UV rays. Physical sunscreens, containing ingredients like zinc oxide or titanium dioxide, are often recommended for those with sensitive skin, as they are less likely to cause irritation.
Applying sunscreen correctly is crucial. You should use enough to cover all exposed skin, including often-missed areas like the ears, back of the neck, and tops of the feet. Don’t forget your lips—use a lip balm with SPF to protect them from sun damage. Sunscreen should be applied 15-30 minutes before sun exposure to allow it to fully absorb into the skin.