Healthcare Spotlight

Dr. Ravi Teja - Importance Of Sun Protection: SPF, UV Rays, And Skincare

Protect your skin from harmful UV radiation with the right sunscreen and usage. Learn about the importance of sun protection, how SPF works, and the ꧑difference between physical and chemical sunscreen ingredients. Discover the '5 W's (& H)' of sun൩screen for complete protection.

Dr. Ravi Teja
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  • Sun protection is not just about preventing sunburn; it's about sa👍feguarding your skin from the harmful effects of UV radiation.

  • UV radiation from the sun consists of UVA a🎀nd UVB rays, both of whi⭕ch can penetrate the skin and cause damage.

  • UVA rays contribute to premature aging, such as wrinkles and sunspots, while UVB rays are primarily respon𝕴sible for sunburn and skin cancer.

  • Prolonged exposure to UV radiation without adequa💟te protection can lead to skin damage, including sunburn, photoaging, and an increased risk of skin ca♍ncer.

The Role of SPF

SPF, or Sun Protection Facto🙈r, measures a sunscreen's ability to protect the skin from UVB rays, the primary cause of sunburn. The SPF number indicates how long it takes for UVB rays to redden the skin when using sunscreen compared to not using any sunscreen. For example, an SPF 30 sunscreen theoretically allows you to stay in the sun 30 times longer without getting sunburned than if you were not wearing sunscreen. However, it's essential to remember that SPF only measures protection against UVB rays and does not account for UVA protection.

Sunscreens: Right Product and Correct Usage

Sunscreen formulations consist♚ of active ingredients designed to shield your skin from the sun's harmful UV radiation. There are two main types of sunscreen ingredients:

  • Physical (mineral) sunscreen ingredients, such as titanium dioxide and zinc oxide, act as a barrier, block🌊ing and dispersing UV rays൲ before they can penetrate the skin, akin to a shield.

  • Chemical sಌunscreen ingredients, like avobenzone and octisalate, function by absorbing UV rays, akin to a ♏sponge, before they can cause harm to the skin.

The "5 W's (& H)" of sunscreen offer valuable insights into its usage:

  • WHO⛎: Everyone, regardless of age or skin typ🐓e, should use sunscreen daily.

  • WHAT: Opt for broad-spectrum sunscreen with SPF 15 or higher for daily use and SPF 30 or higher for extended outdoor act🐽ivi⛄ties.

  • WHEN: Apply sunscreen daily, 30 mꦐinutes before sun exposure, and reapply every two hours or immediately after swimming or sweating.

  • WHERE: Ensure complet🐽e coverage by applying sunscreen to all exposꦜed skin areas.

  • HOW MUCH: Use one ounce (shot glass full) to cover thꦍe entire body for each🌠 application.

  • WHY: Sunscreen reduces the risk of skin damage and sk🐓in cancer by minimizing UV exposure.


Issued in Public Interest by Dr.Reddy's Laboratories LTD