What should you check before buying?

Look for three essentials on the current container: SPF 30 or higher, broad spectrum protection and water resistance. Broad spectrum means protection against both UVA and UVB. Choose by protection and ease of use rather than the brand name, which has no SPF of its own. Read the active ingredients, full ingredient list and directions before deciding whether the formula fits your needs.134

What does SPF 50 actually do?

SPF stands for sun protection factor. Higher SPF numbers mean greater expected protection against UVB, but the tested protection depends on applying enough sunscreen. A thin layer gives less protection. UVA also contributes to skin cancer and causes premature skin aging, which is why broad spectrum coverage matters alongside the number. Regular sunscreen use helps prevent sunburn and reduces the risk of skin cancer and signs of premature aging. Think of sunscreen as daily prevention, not a treatment that clears existing wrinkles or spots on a set schedule.4567

How do you apply it to your face and body?

Use these general sunscreen steps alongside the directions on your Sky & Sol container.

  1. 1Apply sunscreen before going outdoors. Allow approximately 15 minutes before sun exposure rather than waiting until you are already outside.
  2. 2Use at least 1 teaspoon for your face. Most adults need about 1 ounce, roughly a shot glass, to cover skin not covered by clothing. Larger bodies or more exposed skin can need more.
  3. 3Rub sunscreen thoroughly into all exposed areas. Include your neck, ears, legs and the tops of your feet. Ask someone to help cover your back if you cannot reach it.
  4. 4Protect exposed scalp skin if your hair is thinning, or wear a wide brimmed hat. Use a separate lip balm with SPF 30 or higher on your lips.
  5. 5Reapply every two hours while outdoors, and immediately after swimming or sweating. Apply again after towel drying or whenever sunscreen has rubbed off.
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Do you need it every day?

Wear sunscreen every day, including cloudy days and winter days when you go outside. Sun protection is not reserved for beach trips. A UV index forecast of 3 or higher is another clear prompt to protect exposed skin. UVA can pass through clouds and glass, so judging exposure only by heat or bright sunshine misses part of the picture. SPF 50 is a useful strength for days with substantial time outdoors, but it does not change the need for enough product and regular reapplication.457

What if the label lists zinc oxide?

Zinc oxide is a mineral sunscreen filter that protects against UVA and UVB. Mineral sunscreens work mainly by absorbing ultraviolet radiation, with some reflection and scattering; they are not simply a shield sitting on the skin. Chemical sunscreens also absorb ultraviolet radiation. Either type can be an appropriate choice. Mineral formulas can leave a white or gray cast, although newer formulations have improved their appearance. A white cast is an appearance issue to consider, not a required uniform for mineral sunscreen. If visible residue bothers you, a tinted sunscreen that matches your skin tone is an alternative.14

Does it suit sensitive, oily or dry skin?

Choose using the whole formula and label, not SPF alone.

  • For sensitive skin, look for a sensitive skin label and avoid fragrance, parabens and oxybenzone. Mineral filters can be less irritating.
  • For oily skin or skin prone to acne, look for noncomedogenic or won't clog pores wording.
  • For dry skin, look for moisturizing or dry skin wording.
  • If sunscreen stings or burns, choose an alternative with zinc oxide and titanium dioxide as its sunscreen filters, and avoid fragrance.
  • If dark spots are a priority, consider a tinted sunscreen containing iron oxides. Iron oxides add protection against visible light, which can worsen dark spots.
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What about pregnancy and children?

Mineral and chemical sunscreens can both be appropriate during pregnancy. Many dermatologists prefer mineral formulas because little zinc oxide or titanium dioxide is absorbed through the skin and these filters have a long history of use during pregnancy. Daily protection matters because hormonal changes can increase susceptibility to melasma, patches of darker skin that sun exposure can worsen.4

For children aged 6 months or older, choose sunscreen made for children rather than assuming a face and body product is suitable. Keep babies younger than 6 months out of direct sunlight and prioritize shade and protective clothing.16

Can you use it for swimming?

Choose a formula explicitly labeled water resistant for swimming or heavy sweating. Do not infer water resistance from SPF 50 or the face and body name. Reapply after leaving the water even when the sunscreen is water resistant. Water can wash sunscreen away, and towel drying can remove it too. The cooling effect of water can also make burning harder to notice.6

What else keeps you protected?

No sunscreen blocks all ultraviolet radiation. Combine sunscreen with shade, protective clothing, a wide brimmed hat and sunglasses, and do not extend your time in the sun because you are wearing sunscreen. Check the expiry date before use; expired sunscreen and improper storage can reduce protection. If you develop sunburn, stay out of the sun until redness has gone. Seek medical help if you feel unwell or your skin swells badly or blisters. A dermatologist can assess skin you believe has been damaged by the sun.267

Where this answer comes from

  1. 1How do I know if I'm using the right sunscreen?aad.org
  2. 2What You Need To Know About SPF and Sunscreenhealth.clevelandclinic.org
  3. 3Facebooknewsroom.clevelandclinic.org
  4. 4Facebookhealth.clevelandclinic.org
  5. 5Sunscreens: A Complete Overviewdermnetnz.org
  6. 6Sunscreen and sun safetynhs.uk
  7. 7How to apply sunscreenaad.org