When most people think of sunscreen, they might picture the sharp chemical scent under the blazing sun. What often gets overlooked is the ingredient that makes it effective: the sun protection factor, better known as SPF.
Sunscreen serves as the final line of defense for your skin, shielding it from the damage caused by ultraviolet rays.
SPF measures a sunscreen’s ability to protect from ultraviolet rays. According to Cleveland Clinic, ultraviolet A (UVA), while less intense, contributes to minor sunburns, premature aging and tanning. Ultraviolet B (UVB) rays are more harmful, linked to skin cancer such as melanoma and severe sunburns.
Melanoma develops when repeated sunburns cause abnormal growth of melanocytes, the cells responsible for skin pigment. Without protection, frequent burns increase the risk of one of the deadliest skin cancers.
Beyond cancer prevention, sunscreens effectively prevent burning, tanning and premature aging. Regular application helps maintain healthier skin and prevent fine lines, loss of skin elasticity and age spots.
Most sunscreens use minerals like zinc oxide and titanium oxide to create a protective barrier on the skin. The higher the SPF number, the greater the protection. For example, SPF 30 reduces the risk of sunscreen by roughly 30 times compared to unprotected skin.
It is recommended to use SPF 30 on a daily basis, and an SPF 60 or greater for prolonged outdoor activity in high heat. Experts also stress year-round use, since the sun rays remain constant regardless of season. In Coppell, the UV index peaks during summer but normally remains at moderate to low levels for much of the year.
Coppell ISD students and staff often engage in outdoor activities, such as the Eco Club at Coppell High School and student athletes. It is safer for students and faculty to apply sunscreen prior to participating in such activities requiring being out in the sun for prolonged periods.
Despite this, myths about sunscreen persist. Some think darker skin tones do not need protection, but dermatologists stress that UV damage affects all skin types as melanin, the skin pigment, does not provide full protection.
Another misconception is that sunscreen ingredients are unsafe. However, there are no solid studies accurately proving sunscreen is unsafe. In fact, most medical experts agree sunscreen is vital for protection.
In short, sunscreen is not just a summertime accessory. It is a daily necessity, which is a simple step that can prevent lasting skin damage and even save lives.
Follow Ananya Narala (@ananyanarala) and @CHSCampusNews on X.
