Sunscreen Options: Understanding the Distinction Between UPF and SPF, and Why You Could Benefit from Using Both
In the realm of sun protection, two acronyms stand out: SPF and UPF. While they might seem similar, these factors have distinct roles and applications in keeping you safe from the sun's harmful rays.
SPF (Sun Protection Factor) is a rating used to measure the protection of sunscreens against UVB rays that cause sunburn and increase skin cancer risk. An SPF 30 product, for instance, allows about 1/30th of UVB radiation to reach the skin, theoretically offering 30 times longer skin protection compared to no protection (but only UVB). However, SPF effectiveness can be degraded by profuse sweating, swimming in water, and after 120 minutes of normal wear, requiring regular reapplication.
On the other hand, UPF (Ultraviolet Protection Factor) refers to the sun protection afforded by certain specially-designed garments and is fabric SPF. UPF clothing, such as rash guards, tents, hats, long sleeves, wide-brimmed hats, and swimsuits, offers protection against both UVA and UVB rays. A shirt with a UPF rating of 50, for example, blocks 1/50th (2%) of UVA/UVB rays, meaning it blocks 98% of UV radiation. UPF protection is built into fabric and does not wash or rub off; it only degrades if the fabric becomes stretched, faded, wet (for some materials), damaged, or worn.
The primary difference between UPF and SPF lies in their applications, the type of UV protection they offer, and how their effectiveness changes over time. SPF is used for sunscreens (lotions, sprays) applied to the skin, while UPF is used for clothing and fabrics. UPF offers consistent protection even during activities that cause sweating or water exposure, whereas sunscreen’s effectiveness is quickly reduced under these conditions.
To protect against both UVA and UVB, look for sunscreens labeled as "broad-spectrum". Whether you opt for a mineral sunscreen for sensitive skin, a kid-friendly formula, or a long-sleeved UPF shirt, you're taking important steps to guard your skin from the sun’s harmful effects. Using both UPF and SPF together is the best approach for comprehensive sun safety. Sunscreen is essential for exposed areas like the face, hands, and neck, while UPF-rated clothing adds an extra layer of protection for the rest of the body.
Choosing between UPF and SPF isn't an either/or decision; it's about knowing what each one does and using them together to stay better protected. There are various SPF options available, including mineral-based, sensitive skin formulas, sport-ready, and child-friendly products. Embrace the power of SPF and UPF and enjoy the great outdoors with confidence!
[1] Skin Cancer Foundation. (2021). Understanding UPF Clothing. Retrieved from https://www.skincancer.org/prevention/daily-care/clothing-and-sun-protective-gear/understanding-upf-clothing
[2] American Academy of Dermatology. (2021). SPF and UVA Protection. Retrieved from https://www.aad.org/public/diseases/skin-cancer/prevention-and-treatment/sunscreen-information/spf-and-uv-a-protection
[3] Mayo Clinic. (2021). Sunscreen: How to choose the best one for you. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/sunscreen/art-20045672
[4] Skincare.com. (2021). What Does UPF Mean and How Does It Work? Retrieved from https://www.skincare.com/content/what-does-upf-mean-and-how-does-it-work
[5] Healthline. (2021). What Is the Difference Between SPF and UPF? Retrieved from https://www.healthline.com/health/beauty-skin-care/what-is-the-difference-between-spf-and-upf#UPF-clothing-and-fabrics
- "For comprehensive health-and-wellness, one should consider both science-backed skincare practices and fitness-and-exercise routines that promote well-being."
- "In the realms of health-and-wellness and skin-care, using sunscreens, specifically broad-spectrum SPF products, and UPF clothing is crucial for protecting skin from harmful UV rays."
