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Tue Nov 06, 2012 1:19 pm  |
Chemical or Natural Sunblock
Which one is more effective and potent preventing tanning and burning?
If you have to use a chemical sunblock which one would you recommend?
Thank You! |
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Tue Nov 06, 2012 2:52 pm |
| morocha wrote: |
Chemical or Natural Sunblock
Which one is more effective and potent preventing tanning and burning?
If you have to use a chemical sunblock which one would you recommend?
Thank You! |
Here's something that I stumbled upon on the NYtimes website:
"Can you please discuss the relative advantages (and disadvantages) of physical sunblocks like zinc oxide and titanium dioxide compared to the newer chemical sunblocks? I have very fair skin that never tans, and also suffer from eczema, and I’d like to use a wide-spectrum sunblock that does not irritate my skin. What would you recommend for me?
WashingtonDame
Answer
INSERT DESCRIPTION Dr. Doris Day
Dr. Doris J. Day, clinical assistant professor of dermatology at New York University Medical Center and author of “Forget the Facelift” (Penguin/Avery), responds:
The best sunscreen is one that you will use. Most contain a combination of ingredients for effective protection against damaging ultraviolet rays — both the deeply-penetrating UVA and the shorter-wave UVB.
There are differences between the two main types of sunscreens: physical and chemical. A chemical sunscreen is absorbed by the skin. Sunlight is deactivated or degraded after contact with the organic chemicals contained in the sunscreen. Chemical sunscreens typically contain a range of ingredients like benzones, aminobenzoic acid and cinnamates that, together, protect against UVA and UVB.
A physical block, in contrast, sits on the skin’s surface and contains inorganic compounds like titanium dioxide or zinc oxide that are not absorbed into the skin. In this case, light is either absorbed into sunblock material or reflected away from the skin, similar to a mirror or aluminum foil. Ingredients in physical sunblocks protect against both UVA and UVB and, because they are not absorbed into the skin, they are nonirritating and nonallergenic.
The ideal sunscreen would be a physical block using titanium dioxide or zinc oxide. Titanium dioxide is derived from titanium, a highly reflective white chalky mineral. In addition to being nonirritating and nonallergenic, titanium dioxide is non-comedogenic, meaning that it doesn’t produce or aggravate acne. The Food and Drug Administration, in its monograph on sunscreens, lists it as one of the most effective active ingredients for sun protection. Zinc oxide also provides physical protection from damaging rays, absorbing primarily UVA light rather than scattering or reflecting it. It is also a mild antimicrobial and wound healing substance and is considered to be non-comedogenic."
Read rest here: http://consults.blogs.nytimes.com/2009/06/10/what-to-look-for-in-a-sunscreen/ |
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Tue Nov 06, 2012 2:53 pm |
| I don't know if the passage that I quote is clear, but you can read the full version of it from the link. |
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Tue Nov 06, 2012 3:38 pm |
To whittle it down a bit:
Chemical sunscreens are composed of chemicals that react with sunlight on your skin by absorbing the rays, and are therefore unstable. As soon as you are exposed to the sun, those chemical reactions are taking place on your skin.
Physical sunscreens are composed of minerals that have the capacity to deflect (rather than absorb) sunlight rays. They are therefore much more stable (both require re-application for maximum protection), but leave a white cast on the skin because they are creating a physical barrier on the skin.
I developed rosacea and sensitivity as a result of using chemical ss while living in Paris. I much prefer physical sunscreens to chemical ones because they are MUCH more reliable in terms of protection.
--avalange
| VeronicaM wrote: |
| I don't know if the passage that I quote is clear, but you can read the full version of it from the link. |
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_________________
http://newnaturalbeauty.tumblr.com/ 37, light-toned olive skin, broken caps, normal skin. My staples: Osea cleansing milk, Algae Oil, Advanced Protection Cream, Eyes & Lips, Tata Harper, Julie Hewett makeup, Amazing Cosmetics Powder, & By Terry Light Expert, Burnout, and daily inversion therapy and green smoothies! |
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Tue Nov 06, 2012 3:42 pm |
I also think that physical sunscreens are gentler.
Chemical sunscreens often irritate my skin but physical sunscreens don't irritate me. |
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Tue Nov 06, 2012 4:00 pm |
I read that physical sunblocks...zinc, titanium...cause cell DNA damage/deterioration...
Please clear this?
I need a potent sunblock that can really protect my skin from tanning and burning.
Has any one heard of Ansolar? Is that a chemical or physical sunblock? And is it worth the try? |
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havana8
Moderator
 
Joined: 09 Sep 2005
Posts: 3449
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Tue Nov 06, 2012 6:04 pm |
| morocha wrote: |
Is Z-cote powder safe to use on the skin? Is the transparent form of zinc oxide.
Thank You. |
| morocha wrote: |
How much sunscreen do you use on your face and body?
How much sunscreen do you apply for full coverage and protection?
How much is the correct amount?
Thank You! |
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havana8
Moderator
Joined: 09 Sep 2005
Posts: 3449
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havana8
Moderator
Joined: 09 Sep 2005
Posts: 3449
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Sun Nov 25, 2012 2:45 pm |
| morocha wrote: |
I'm a bit confused regarding sunblocks...? Confused here. Which is the type of sunblock that create free radicals and cell damage? The physical sunblock(zinc oxide, titanium dioxide...) or the chemical sunblock???
Thank You. |
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Mon Nov 26, 2012 7:53 am |
| I read hysical sunblocks create free radicals! |
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Masha G
New Member
Joined: 24 Dec 2022
Posts: 2
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Sat Dec 24, 2022 6:46 am |
| Quote: |
Chemical or Natural Sunblock
Which one is more effective and potent preventing tanning and burning?
If you have to use a chemical sunblock which one would you recommend?
Thank You! |
Chemical sunscreens contain ingredients such as oxybenzone, avobenzone, octinoxate, and homosalate, which absorb UV radiation and prevent it from reaching the skin. Chemical sunscreens are generally more effective than natural sunscreens because they create a barrier on the skin that blocks UV radiation. Additionally, chemical sunscreens tend to be more long-lasting than natural sunscreens. However, some people may have an allergic reaction to chemical sunscreens, so it is important to test the product before use.
Natural sunscreens, such as those made from minerals like titanium dioxide and zinc oxide, work by reflecting UV radiation away from the skin. Natural sunscreens are generally less irritating than chemical sunscreens and are considered safe for most people. However, natural sunscreens can be less effective than chemical sunscreens and require more frequent application.
The best way to ensure optimal protection is to use a broad-spectrum sunscreen with an SPF of at least 30 and reapply as needed. It is also important to wear protective clothing, seek shade, and limit sun exposure, especially during peak hours. |
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Nurse Injector | RN, BSN |
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