Sun Screen

Do you know what is SPF mean? Do you know much amount we should apply to protect our skin? Here are answers:
SPF
The FDA has defined SPF as the amount of time it takes to produce minimal redness(erythema) in skin via UVB exposure. This is called the Minimal Erythemal Dose(MED), and its achieved when the skin attains the amount of UVB required to produce redness ,more commonly known as sunburn.
An SPF 2 enables the skin to be exposed to UVB twice as long as when sunscreen is not used before the MED is attained. This means that an SPF2 absorbs 50% of UV rays, allowing the other 50% to get through, so it takes twice as long for the skin to absorb the amount of UV needed to produce redness.An SPF 8 absorbs 87.5% of the rays. Leaving 12.5% to reach the skin. An SPF 15 absorbs 93.33%, allowing 6.67% UV to get through and SPF 30 absorb 96.67% allowing 3.33% to pass . Now you see that even the higher SPF will not absorb 100% of UV rays. This is why the FDA no longer allows the use of the term “Sun Block” to describe sunscreen.
SPF 30 does not offer twice the protection as an SPF 15
Based on thenumbers, SPF 30 offers less than 4% more protection than an SPF15 But that is not the whole story. To achieve the extra 4% the higher SPF must reach beyond UBV rays into the UVA part of the part of the sun’s radiant spectrum. Because UVA is implicated in phototoxic and pthotoallergic reactions, as well as diseases such as lupus, this extra 4% can be enough to keep certain complexions safe in the sun.
*****Sunscreen are over-the counter(OTC) drugs that are regulated by the FDA.
Many company claim their natural ingredients has UV protection effect, however It can not be identified as sun screen. The only exception is if the product , not the individual ingredient receives New Drug approval from FDA
Following ingredients are recognized by FDA as sunscreen in these OTC drugs.
AminobenzoicAcid(PABA), Avobenzone, Cinoxate, Dioxbenzone,
From Skin Inc magazine

2010.09.06 | | Comments(2) | Trackbacks(0) | cosmetic ingredients



What is a natural indredient?

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We see so many cosmetics they claim they have “natural” ingredient in their products . What is the meaning of “natural”?
In the med-1990s, the FDA (US Food and Drug Administration) reportedly contacted,1800 consumers randomly from the telephone book and asked them to define the word “natural” as it applied to such categories as foods and cosmetics.
According to the story they received 1800 different definitions. Approximately 80% of those queried said that said that they thought “natural” had something to do with plants. As a result, to date, the FDA
Still has not published a definition of natural cosmetics and probably won’t in the forcseeable future.
(From Skin Ink Magazine)

2010.09.06 | | Comments(2) | Trackbacks(0) | cosmetic ingredients



More happiness, less worry after age 50, study find”

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If you are over 50 you will like this article below,
“More happiness, less worry after age 50, study find”
With age, we inevitably develop more wrinkles, aches and pains, and more problems of all kinds with our bodies. But these unwelcome changes don’t seem to get us down. People over age 50 are apparently happier and less stressed :We e worry less and feel increasingly better about our lives, even into old age. These are the finding of a study published in the proceeding of the National Academy of Sciences that investigated age-related changes in two different aspects of well being overall satisfaction with life(global well-being) and day to day experiences of certain emotions

Article from Harvard womenn;s health Watch

2010.09.06 | | Comments(1) | Trackbacks(0) | Women's health



Are you suffering from Hot flashes?

The antidepressant medication cuts hot flash severity and frequency
For many women experience hot flashes at menopause as well as common side effect of breast cancer treatment. For some women, they are daily burden that can persist for years, disrupting sleep and eroding quality of life. In recent research shown that certain antidepressants can reduce hot flashes by 50% more. These include Paxil, Prozac, Effexor and SNRI.

• If you are treated early-stage hormone receptor positive breast cancer
However Paxil and Prozac have been found to greatly reduce the effectiveness of tamoxifen, which is commonly used to reduce the recurrence in women being treated for early-stage hormone receptor-positive breast cancer.
The research showed that Celexa with little effect on tamoxifen metabolism cuts the frequency and severity of hot flashes by at least 50% in postmenopausal women.

(Article from Harvard Women's health Watch new)

2010.09.06 | | Comments(0) | Trackbacks(0) | Breast Cancer



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