Frequent question: What SPF is recommended for adults when using sunscreen?

Is it better to use SPF 30 or 50?

A sunscreen with SPF 30 will protect you from around 96.7% of UVB rays, whereas an SPF of 50 means protection from about 98% of UVB rays. Anything beyond SPF 50 makes very little difference in terms of risk of sun damage, and no sunscreens offer 100% protection from UVB rays.

Is SPF 30 or 60 better?

The rationale behind this myth is that if SPF 30 can filter out 96.7% of UV rays, while SPF 60 can filter out 98.3%, the resulting difference is only 1.6% – thus SPF 60 must only be marginally better than SPF 30. … Sunscreens with SPF 30 allow 3.3% of UV radiation to hit our skin.

Is it recommended to use sunscreen with an SPF of 20 or higher?

Dermatologists recommend using a sunscreen with an SPF of at least 30, which blocks 97 percent of the sun’s UVB rays. Higher-number SPFs block slightly more of the sun’s UVB rays, but no sunscreen can block 100 percent of the sun’s UVB rays.

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Is there a difference between SPF 50 and 100?

Properly applied SPF 50 sunscreen blocks 98 percent of UVB rays; SPF 100 blocks 99 percent. When used correctly, sunscreen with SPF values between 30 and 50 offers adequate sunburn protection, even for people most sensitive to sunburn.

What is the difference between SPF 40 and 50?

The difference between a SPF 40 is you block out 97.5% of UVB radiation and SPF 50 blocks 98%. … Most of us also forget that SPF is only at its most active for about two hours, so you need to reapply it often. “An SPF 30 sunscreen applied properly will give better protection than an SPF 50 sunscreen applied too thinly.”

How do I choose sunscreen SPF?

Ideally, any sunscreen with sun protection factor (SPF) between 15 to 25+ will help protect you from daily sun exposure. However, if you are staying outdoors for a longer period of time, then opt for a higher SPF. Also, choose a sunscreen which is non-sticky or non-greasy, as this will not make your skin too sweaty.

Is SPF 45 enough for face?

“SPF is not a consumer-friendly number,” says Florida dermatologist James M. … According to Spencer, an SPF 15 product blocks about 94% of UVB rays; an SPF 30 product blocks 97% of UVB rays; and an SPF 45 product blocks about 98% of rays.

Is SPF over 30 a waste?

You can buy a product that is labeled as higher than SPF 30, but it’s almost always a waste, and potentially harmful. … SPF 30 filters out approximately 97 percent. SPF 50 filters out approximately 98 percent. SPF 100 might get you to 99.

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Is SPF 70 better than 50?

High-SPF products don’t give you a whole lot more protection. … But the truth is that higher-SPF products are only marginally better at shielding you from UVB, according to both the EWG and the Skin Cancer Foundation. SPF 30 blocks nearly 97% of UVB radiation, SPF 50 blocks about 98%, and SPF 100 blocks about 99%.

Is SPF 15 sunscreen good enough?

What level of SPF do I need? If you’re inside most of the day with just short intervals in the sun, you can use a sunscreen or cosmetic product with an SPF of 15 or higher. If you spend a lot of time outdoors, especially when and where the sun is strongest, you need an SPF 30 or higher, water-resistant sunscreen.