Doctor insights on:
When I go outside without sunblock and an umbrella I get raised plateus on my skin. It hurts and itches and my throat closes up. my lips burn to blac?
Titanium Dioxide: Titanium is one of the physical sun blocking agents found in certain sunscreens. 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
Block UVA & UVB: An ideal sunscreen would block both uva & uvb rays with active ingredients that do not break down in the sun (so that the product remains effective), and would contain active and inactive ingredients that are proven to be safe for both adults and children. Unfortunately, there is no sunscreen that meets all of these criteria, and no simple way for consumers to know how well a given product stack. ...Read moreSee 2 more doctor answers
Many: Using sun screen has several benefits first, it can prevent sun burn which can be very painful more importantly, most forms of skin cancer are caused by an accumulation over time of the suns harmful ultra violet rays. Some of them can be deadly in addition, too much sun exposure over time causes the skin to be rough and wrinkled. ...Read more
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
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
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
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