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Last posts on private forums:  sare  2008-06-16 09:56:33 matthew 2008-04-12 21:25:59 pieniadz 2008-04-12 20:52:26
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Last posts on private blogs: matthew 2008-04-12 21:25:17 mary 2008-04-12 19:27:47 |
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Lastly added medical terms:
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You are in: Main Page / Medical articles / Skin / Facts about Cosmetics
There are certain facts about cosmetics every women should know so as not to get in trap of advertising.
Many women uncritically believe in what the producer says about cosmetics and they buy e.g. a face cream which claims "removes all wrinkles". Of course, at home it turns out that this magnificent cream doesn't even moisture your skin properly. A woman who realizes that once again a producer caught her in a trap feels deceived and disappointed. She can only be mad at herself that she had unnecessary spent money. The truth is that if you don't have even a minimum knowledge about cosmetics you can get easily deceived. The article presents certain myths women often believe in.
Myth 1
'The cream gives 100 percent protection from the sun'
There are no such products. Obviously, the higher the SPF, the better protection. For instance, SPF-15 protects skin in 93.3%, SPF-30 in 96.7% and SPF-50 in 98%.
Myth 2
'Two creams with the same SPF filter identically protect skin from sun rays'
It seems to be logical but it's not the way we think. SPF gives information about how many times longer we can stay in the sun rays without risking skin reddening caused by UVB rays. For instance: if the skin gets red in a person after 15 minutes of sun exposure, after he or she uses SPF-30 cream the skin will get red after 15 minutes x 30 = 7.5 hour of sunbathing. So what's the difference? You must have heard about UVA and UVB rays. UVB rays are shorter and they are the ones to blame for sun burns. UVA rays are longer and they get deeper into the skin. They are responsible for skin aging and can intensify the UVB effect. The name SPF means that the cream protects only from UVB rays. It's a good idea to find a cream which also protects from UVA rays so you should search for IPD and PPD abbreviations on the bottle (the higher the number, the better). That is why it can turn out that 2 creams with identical SPF protection protect us against UVA differently.
Myth 3
'The cream contains plenty of vitamins!'
It is possible but not obvious. For instance, if we look at ingredients list, the ones which come first constitute most of the cream composition. These which are placed at the end of the list are present in small amounts. That is why we shouldn't delude ourselves, if vitamins at the bottom of the list - there are scant portions of them in a given cream.
Myth 4
'A given cosmetic contains collagen so it will surely combat my wrinkles'
Research says that collagen can't go through the corneal layer of the skin (which is essential for wrinkle reduction). It's possible that the cream will optically make skin firmer but this effect will disappear after washing the cream from the face and wrinkles stay the same as they were.
Myth 5
'Products with hyaluronic acid moisturize the skin'
The truth is that they don't moisturize, they only protect from dehydration. Hyaluronic acid can't go through the healthy epithelium so it creates a protective layer which prevents water from going out.
Myth 6
'Waterproof means waterproof'
It''s possible that a cream is waterproof up to a certain degree but if such information is placed on a suncream it's good to apply it once again after swimming.
Added by:
mary
not connected with health care system
Added on:
2008-07-25 10:38:48 ,
Updated:
2008-07-25 10:42:24
Bibliography:
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