Doctor insights on:
Difference Sunscreen Sunblock
None: Both do the same thing in blocking out rays of sun. ...Read more
Sunscreen/sunblock: The difference between is how good they are at screening out harmful radiation from the sun. Blocks are stronger and thus more effective at keeping out those harmful UV rays. Blocks are also usually more visible. For instance, the white zinc oxide life guards use on their nose is more of a block. Nothing is 100% though, so hats with wide brims and lightweight clothing works well too! ...Read more
Shield vs filter: True sunblocks essentially create a shield to effectively block out the sun with zinc oxide being one of the most common preparations. They tend to be opaque. Sunscreens are chemical agents which filter out undersireable wavelengths of the sun and come in a variety of strengths and formulations. They tend to be clear. The diagram represents the spectrum of coverage. ...Read moreSee 1 more doctor answer
Nope: Sunscreens work via 2 possible ways: 1) chemical blocks that breakdown the uv rays as they pass through the skin and 2) physical blocks that prevent the uv rays from getting to the skin. I recommend the physical blocks (zinc and titanium) because they have a very good safety profile and work very effectively. If you are going to be in the sun - use a minimum of spf 15 - follow product directions. ...Read moreSee 1 more doctor answer
Sunscreen / Block: Sunscreens work via 2 possible ways: 1) chemical blocks that breakdown the uv rays as they pass through the skin and 2) physical blocks that prevent the uv rays from getting to the skin. I recommend the physical blocks (zinc and titanium) because they have a very good safety profile and work very effectively. If you are going to be in the sun - use a minimum of spf 15 - follow product directions. ...Read moreSee 2 more doctor answers
SPF: The degree of protection by physical barriers will depend on the type of fabric and how much of the suns rays are able to pass through. Specialty clothing, found at sports supply and camping stores, are lightweight and offer varying degrees of protection. Chemical barriers and the degree of protection they afford depends on ingredient (i.e. zinc oxide, PABA, etc) and concentrations ...Read more
SPF 25 is fine.: The SPF refers to how much time one can spend in the sun without burning, on average of course. Typically we'd burn in ~10 minutes without any sunscreen. SPF x 10 then gives us the time we can spend with sunscreen. So SPF 25 gives us ~250 minutes, or ~4 hours. SPF 50 would give us ~500 minutes (~8.5 hours). For practical purposes, then, SPF 25 is usually high enough. ...Read more
Sunscreens: The new ratings do not include a term, sunblock, any more. Sunscreens can protect against both ultraviolet a and ultraviolet b cellular damage to your skin. Some of the older ultraviolet a agents were found not to be stable in the sun! newer generation sunscreens have photostable uva blockers. The old term of sunblock referred to the white mineral zinc oxide cream that people put on their noses. ...Read moreSee 3 more doctor answers
Both are great: Sunblock normally consists of a physical blocker like zinc or titanium oxide which block and reflect both uva and uvb rays. Sunscreen usually means a chemical screen that interacts with the uvb rays to prevent sun damage. A combination of both us very common, but for very sensitive skin, a block is sometimes better. ...Read more
What do the SPF numbers on sunblock/sunscreen mean? How do I know what the right amount of SPF is for me?
Sunprotection factor: Spf means sun protection factor and is a measure of the amount of protection from the sun a sunscreen provides. So the higher the spf the more protection it gives from the sun and the longer you can stay out after application. It is difficult to say exactly how long you can stay out based on the spf only as it depends on sun intensity. So the higher the spf the better generally speaking. ...Read moreSee 1 more doctor answer
How can I convince my kids to wear sunscreen/sunblock? Any tips (anything would be appreciated, please!) ?
Just do it: Your children are not in control of their lives-you are. When you put them in a car seat and buckle them in it is to protect them from injury. Sunscreen is no different and can be just as life saving. I have a father-in-law with end stage melanoma. His mother didn't use any sunscreen. Make the decision now to do what's right for your children. Someday they'll understand the love behind the lotion. ...Read moreSee 4 more doctor answers
I don't want to get darker so i bought SPF 50 sunscreen but some people told me that sunblock makes you not get darker. Is that true?
Sunblock or sunscreen to prevent getting darker? Any specific drugstore available ones you can recommend?
SPF 15 or higher: The higher you go on the spf, the longer it protects your skin. Try one that is waterproof and blocks both uva and uvb types of sun rays. Wearing a hat with a visor when outdoors as well as long sleeves and pants also helps! many make ups also have sun protection in them now. You can put the sunscreen on after your shower in the am to remember to use it, too. ...Read more
what should I use sunblock or sunscreen I do not want to get any darker
also what should I use for swimming too sunblock or sunscreen?
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