How to Choose the best Sunscreen
If you are going to be out in the sun, it's important to apply sunscreen to prevent sunburns, premature skin aging, and skin cancer. Whether you are heading out to the beach to go swimming or heading out for a fun day of hiking, applying sunscreen should be part of your regular day. However, it's important to know what type of sunscreen to choose. When picking out a sunscreen, you need to think about the sun protection factor (SPF), ingredients, and whether you need a specialty sunscreen for your skin or your activities.
You should also keep in mind factors like safety and potential toxicity, allergies to any of the ingredients, and whether the sunscreen you choose might disrupt your hormone balance.
SPF-50 products are estimated to allow 1/50 of the sun’s burning rays to get through to the skin (protects against approximately 98% of the sun’s burning rays).
1
Use a sunscreen that is SPF 15 or higher daily. When going in and out of the sun on a daily basis, for instance going to and from work, your skin gets exposed to a lot of ultraviolet (UV) rays. Using a sunscreen with an SPF of at least 15 every day will help protect you from this type of quick, daily exposure.[3]
- A SPF of 15 can help with minor daily exposure to the sun. However, it is not ideal for when you spend extended periods of time outdoors.
2. Buy a sunscreen with a SPF of 30 or higher for extended stays outdoors. If you plan on spending time outdoors, such as going to the beach or playing a sports game outside, it's important to give your skin more protection. Pick a sunscreen that has a SPF between 30 and 70.[4]
- A sunscreen with a SPF of 30 will block out 97% of the sun's UV-B rays.
3 Be wary of buying sunscreen that claims to have an extremely high SPF. Sunscreen with an SPF higher than 70 is generally only slightly better than SPF 50-70. Picking a sunscreen with a SPF of 80 or 90 may just cause you to spend extra money for a product that is really no better.
As the SPF numbers increase beyond 50, the amount they protect only increases very slightly. For instance, a SPF of 50 blocks 98% of UV-B rays, while a SPF of 100 blocks 99% of UV-B rays.
4
Pick a broad-spectrum sunscreen. A broad-spectrum sunscreen protects against UV-A and UV-B rays, which are different types of ultraviolet rays that can damage the skin. Sunscreens that are broad spectrum should state it clearly on the label.[6]
- The ingredients in sunscreen that protect against UV-A and UV-B rays are different. In order for a sunscreen to protect against both, it needs to be a combination of several protective ingredients.
- Use your personal preference to choose between forms of sunscreen.Sunscreens come in a wide variety of forms, including lotions, creams, ointments, gels, sprays, wipes, and lip balms. What type you use should depend on what you like to use and what you need to protect with the sunscreen. For instance, use an SPF lip balm to protect your lips.[7]
- Whatever form of sunscreen you choose, it should state clearly what SPF it is, if it is broad spectrum, and how it should be applied effectively.
- Be sure to follow the application instructions for the specific form of sunscreen you are using, including how long you need to wait after application before sun exposure and how often it should be reapplied.
- Try a sunscreen with different ingredients, if necessary. If your skin reacts badly to the type of sunscreen that you have been using, there are other types you can choose from. Not all sunscreens have the same protective ingredients, so look at the ingredients in the one you have and pick a new product that has different ingredients.
- Some skin reactions that signal that you need to use a different sunscreen include itching, burning, or redness.
- Many people have a sensitivity to para-aminobenzoic acid (PABA), which is a common ingredient in some sunscreens. If you are sensitive to that ingredient, look for sunscreen labels that say "PABA free."
- Avoid sunscreens containing oxybenzone, which can penetrate your skin and disrupt your hormones
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