Doctor insights on:
Is Wearing White Or Black Clothing Better For Sun Protection
Doesn't matter.: Ultraviolet light passes through (or is blocked by) clothing at the same rate, no matter what color it is. However, black clothing will absorb a lot of heat, while white clothing will reflect it. So if it's hot out, you'll be more comfortable in a white outfit. ...Read more
Other than infant sunscreen & lotion, shade hats, & cool clothing, what can I bring to protect from sun burn?
Source, please?: What is your source for this data? ...Read more
Son 15 yrs, indian, sunburn, 5 hours at beach phuket, 6 days back, was without clothes and sunscreen. No blisters but peeling. 3 small moles visible?
Yes: Wearing protective clothing is much more effective than spf. Also, frequent reapplication of sunscreen is very helpful. None of the 'waterproof" sunscreens are really waterproof, and will rinse off while in pools or the ocean. ...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 more
SPF: Spf stands for sun protection factor. The number is determined experimentally indoors by exposing human subjects to a light spectrum meant to mimic noontime sun. Some subjects wear sunscreen and others do not. The amount of light that induces redness in sunscreen-protected skin, divided by the amount of light that induces redness in unprotected skin is the spf. It is mainly a measure of uvb protec. ...Read more
SPF measures UVB: Spf is the most familiar method of measuring sunscreen effectiveness, but it doesn't tell the whole story and new labeling regulations will be applied soon. Ultraviolet light from sunshine is divided into "a" and "b" wavelenths, with uvb causing burning and uva more linked to aging. And spf of 15 means that it takes 15 times longer to cause redness of the skin with uvb exposure. ...Read more
Depends: Some t-shirts are made to block uva and uvb radiation. These are usually marketed to boaters, fisherman, etc. Normal clothing blocks most uvb but not uva. Sunblocks can block both or only uvb as well. You need to read the specific coverage of the sunblock. ...Read more
Short/long term dmg: Your question concentrates on the short term risk of sun exposure, which is that messy burn so many get. It may be comforting that he doesn't burn easily. However, the long term effects of solar radiation on the skin include such things as a lifetime risk of melanoma or other cancers. Life is a marathon, not a sprint. Consider sun screen an investment in his future. ...Read more
No: Unfortunately, being in the water (or being wet) offers no sun protection. Make sure you put on sunblock and reapply often! ...Read more
Vitamin C and E: Topical antioxidant vitamins c and e have been shown to reduce the inflammation associated with sunburns. However, alone, they are not as effective as sunscreens that contain zinc oxide. Combinations of these antioxidant vitamins with zinc oxide provide synergistic protection. ...Read more
No: Cancer develops and grows based on changes in the oncogene components within the cell. Mutations in genes such as p53 are induce by viruses or carcinogens. As an example, the LTR of the MMTV virus enters the Wnt-1 gene to induce overproduction of B-catenin causing aggressive behavior. This does not occur by type of cloths worn in sun. Latter causes increased sweating and not Ca. ...Read more
Sunscreen: You do not need to become a vampire, but you should try to prevent extended exposure to uv radiation. If you are going to outdoors wear sunscreen and try to cover up as much as possible with a hat and a shirt. ...Read more
LLumar: You can google www. Llumar. Com to find out about this product. The side and back windows are the most important since they allow 60% of uva rays in. ...Read more
Have any bad effects of sun protection creams on skins been ever reported? If it occurs, please explain more about details. Thanks doc
Yes: The most common adverse reaction are allergic reactions. These reactions are more likely against components of the cream rather than the active ingredient. These reactions are rare. Skin cancer and UV related skin damage are very common. I would advise that you find a sunscreen that you tolerate and use it every day ...Read more
Are there side effects of using face sun protection cream with SPF 70? I feel my skin burned & reddish after using it. When should we use it? Thx.
See your doctor: Discontinue using any creams that cause redness or burning. You many be allergic or sensitive to one of the ingredients. If it does not get better quickly see your primany care doctor. ...Read more
Do the probable bad effects of sun protection creams remain permanently on skin? Please introduce some brands of sun protection creams for blonde skin
No sun cream worse: If you cannot avoid sun between 10:00 am and 4:00pm, always use sun protection. They do not cause problems to your skin. For fair skin like you, use higher protection factors like 50. If you have oily skin look for brands that have a less oily base. If you have sensitive skin, uses brands used for children, they usually are very gentle. In the US, neutrogena is a good brand. ...Read more
Sunscreen SPF 30: This is a decent amount of protection, but you have to do the math. If you normally get pink, red, or burned in 15 minutes; then spf 30 will delay that from happening in 15 x 30 minutes or 7.5 hours. It depends on your skin type: if it takes you 30 minutes to get red, then you get 15 hours out of your sunscreen. Remember, though, that you have to keep re-applying it every 2 hours thru the day! ...Read more
Physical or chemical sunscreens? And what are good choices for face and body sun protection products?
Depends: I recommend a broad-spectrum sunscreen offering protection against both uva and uvb rays. Usually, at least three active ingredients are called for. These generally include paba derivatives, salicylates, and/or cinnamates for uvb absorption; benzophenones for shorter-wavelength uva protection; and avobenzone, ecamsule, and titanium dioxide, or zinc oxide for the remaining uva spectrum. ...Read more
Can using sunscreen everyday accelerate wrinkles? What's the right SPF that's good enough for sun protection?
SPF 50 SPF 50:
Is as good as you can get and WRINKLES come FROM the SUN rays NOT from the SUNSCREEN!
Hope this helps
Dr Z ...Read more
I apply physical sunscreen everyday, but it leaves an oily look in my face, if I pat the excess oil with a tissue will I reduce the sun protection?
No: Allow enough time for application of your sunscreen to allow it to dry before going out of the house. Patting dry is not likely to affect the protection offered by sunscreen. Remember to use a SPF of at least 30. ...Read more
If there is SPF 15 with uvb + uva in my aha glycolic acid 4% day cream, does this provide adequate sun protection or should sunscreen be used too?
A woman of 25 has skin cancer. Always used sun protection. How comes? What are the future prospects?
No: No this does not. This requires treatment using special chemical agents. ...Read more