What is SPF? Understanding Sun Protection Factor (SPF)

What is SPF? Understanding Sun Protection Factor (SPF)

Sunshine beckons with its warm, inviting rays, promising days filled with outdoor fun. Yet, it's essential to discuss an invisible shield that's crucial for our skin: Sun Protection Factor, or SPF. Here's a deep dive into SPF and why it matters for everyone who loves the sun.


What is SPF?

SPF stands for Sun Protection Factor. It's a measure of how well a sunscreen can protect your skin from UVB rays, the kind of radiation that causes sunburn and contributes to skin cancer. The SPF number tells you how long the sun's UV radiation would take to redden your skin when using the product compared to the time without sunscreen.


No Sunscreen:

  • Leaving skin unprotected exposes it to UVB and UVA rays, increasing the risk of sunburn, premature aging, and skin cancer.


SPF 15:

  • Blocks about 93% of UVB rays.

  • Suitable for short daily routines that include incidental sun exposure.


SPF 25:

  • Offers a higher level of protection, blocking about 96% of UVB rays.

  • Ideal for longer outdoor activities, providing a balance between strong protection and everyday usability.


SPF 30:

  • Prevents about 97% of UVB rays from reaching the skin.

  • Recommended by dermatologists for extended outdoor activities, offering robust protection for most individuals.


SPF 50:

  • Offers about 98% UVB protection.

  • While it provides a high level of defence, it's particularly beneficial for those with fair skin, a history of skin cancer, or conditions that increase sensitivity to the sun.


Oze Sun is committed to safeguarding your adventures under the Australian sun. We recommend using an SPF sunscreen to ensure that whether you're surfing at Bondi Beach or hiking in the Outback, your skin is protected, and your spirit for adventure, unbound.


💡 Remember, applying sunscreen should be a part of your daily routine, not just reserved for beach days. Reapplication every two hours, or after swimming or sweating, is key to maintaining effective protection.


Stay sun-safe and skin-happy,

Zoe Lee Wood xx


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