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Wed Jul 08, 2009 9:48 pm |
my sunblock (only has zinc oxide). I have a hyperpigmentation problem, so I know i need to use sunscreen/sunblock every day. I know if I'm in the sun, I re-apply every two hours (even with my hat on). However, I wonder about reapplying my sunblock when i'm indoors all day. Thank s a lot! |
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Thu Jul 09, 2009 12:29 am |
I think it depends on the SPF and PA value. If it is high enough, then you don't need to reapply frequently. Otherwise, even indoors, you should reapply every other hour. |
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Thu Jul 09, 2009 4:02 pm |
Angy wrote: |
my sunblock (only has zinc oxide). I have a hyperpigmentation problem, so I know i need to use sunscreen/sunblock every day. I know if I'm in the sun, I re-apply every two hours (even with my hat on). However, I wonder about reapplying my sunblock when i'm indoors all day. Thank s a lot! |
I never reapply sunscreen if I am only indoors. Curious what others do. |
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Thu Jul 09, 2009 4:19 pm |
What would be the purpose of applying sunscreen at all, let alone every 2 hours if one spends the entire day indoors?
Sunscreens have alot of chemicals in them for one thing, why subject you face to that if it isn't needed? For another, it just seems like a waste of money to continually apply a product when it is not needed. |
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Thu Jul 09, 2009 4:28 pm |
I do not use sunscreen indoors either |
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Thu Jul 09, 2009 4:35 pm |
If it's physical, and your sunscreen is physical since it only has zinc oxide you don't need to re-apply at all unless you wash it off or wipe it off, or sweat it off or something like that. Since you're indoors, I doubt that's an issue
Re-applying is only an issue for chemical sunscreens. |
_________________ 24 yrs old. favorite sunscreen right now: Burnout [now 35] |
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Fri Jul 10, 2009 8:06 am |
I don't put sunscreen on when I am at home. Because I don't think the sun is that strong. hahaha |
_________________ Skin: normal to dry, sensitive, freckles, 31 |
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Fri Jul 10, 2009 9:26 am |
From:
http://www.cancerhelp.org.uk/help/default.asp?page=5413
Quote: |
Could you please tell me if it is possible to get skin cancer whilst sitting in a conservatory or through a car window?
People often think that glass windows protect us from sunburn and skin damage. Although most glass windows do offer some protection, they are definitely not completely sun proof and you shouldn't think of them as sun protection.
Skin cancer develops when genes in skin cells are damaged by ultraviolet radiation. This mainly comes from the sun but can be man made – for example, from sunbeds. Most skin cancers are the result of too much exposure to the sun. Ultraviolet radiation is invisible and you can't feel it on your skin. It penetrates deeply into our cells, causing changes leading to sunburn, skin ageing, eye damage and skin cancer. There are three types of ultraviolet radiation, but only two reach the earth's surface. These are UVA and UVB. UVC is filtered out by the ozone layer.
UVA causes skin ageing and research has now shown that it is also likely to cause skin cancer. UVB causes redness and sunburn and is a major risk factor for all types of skin cancer.
Most glass used for windows blocks UVB but not UVA. This means that although glass greatly reduces the risk of sunburn, it does not prevent long term damage from UVA. So, if you are driving long distances or sitting in your conservatory every day for long periods of time, you need to make sure you are using sun protection on sunny days.
Several factors can affect your risk from sun exposure. Most importantly, this is how much time you spend outdoors, but also the time of day, season, latitude, altitude and cloud cover. People with fair skin that tends to burn or freckle are at higher risk. |
Personally, I'm trying to get away with the least amount of applications as possible because of all the chemicals in sunblocks. |
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Fri Jul 10, 2009 12:03 pm |
I'm taking from that those of us who don't have conservatories are pretty safe at home sans sunscreen. |
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Fri Jul 10, 2009 2:43 pm |
I have blinds and my house is pitch dark in here where I even have to turn on the light during daytime so there's no need for me to use sunscreen.
The reason why I keep my blinds closed COMPLETELY closed 24/7 is because I live in an apartment and I hate it when nosy neighbors peek in when walking by. I arranged the blinds exactly so that no one can see anything when they walk by. |
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Fri Jul 10, 2009 4:22 pm |
If you have a hyperpigmentation problem and it bothers you that much, then yes, you should protect your skin from the sun even when indoors. I know someone who has her car windows and home windows tinted, plus she wears sunscreen all the time...it's that important to her!
I do have melasma on my cheeks rather badly, but I just can't see living my life like that. When leaving the house, I ALWAYS wear sunscreen. When at home, I don't bother. I guess I'll never have flawless skin. |
_________________ Nadine, age 50, live in VA; half-Asian, slight yellow tone; sensitive, dry/combo skin |
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Fri Jul 10, 2009 5:28 pm |
LLucy wrote: |
I'm taking from that those of us who don't have conservatories are pretty safe at home sans sunscreen. |
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Fri Jul 10, 2009 11:55 pm |
I do not apply if i stay indoors. |
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Mon Jul 13, 2009 3:16 pm |
Thanks all of you for your feedback. In case someone is interested, I found this
"Kenneth A. Arndt, MD, clinical professor of Dermatology at Harvard Medical School, Boston, wrote in the current "Bottom Line Personal" that sunscreen and sunblock are not the same.
Sunblock is opaque and blocks almost all of the sun's UVA and UVB rays. It consists largely of zinc oxide and titanium dioxide. Sunblock does not have to be reapplied every few hours.
Sunscreens are less visible on the skin and are designed to protect against UVA, UVB, or both. They do allow some radiation through and need to be reapplied every few hours because their ingredients break down after exposure to sunlight. If you use sunscreen, it is better to use one that has a high SPF, put on a lot, and reapply every two to three hours.""
link http://www.realself.com/question/sunscreen-vs-sunblock-whats-difference |
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Mon Jul 13, 2009 3:21 pm |
By the way, I'm looking for some sunblock which only contains Zinc Oxide preferable NO nano, micronized, Zcote, and not too greasy/oily.
So far, I've seen good reviews for
Devita
Marie Veronique
If any of you rave about a sunblock with zinc oxide (no tatinium oxide or any other active ingredient) please share with me!
Thanks a bunch |
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Mon Jul 13, 2009 6:50 pm |
Both Pratima and Devita are favorites right now for me. And I've tried A LOT. |
_________________ 24 yrs old. favorite sunscreen right now: Burnout [now 35] |
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Mon Jul 13, 2009 7:45 pm |
thanks Nimue.
I just found out about Natural Instincts (Australian) nano free and only zinc oxide, which sounds really good. Has anyone tried it? |
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Tue Jul 14, 2009 11:18 am |
Nimue wrote: |
If it's physical, and your sunscreen is physical since it only has zinc oxide you don't need to re-apply at all unless you wash it off or wipe it off, or sweat it off or something like that. Since you're indoors, I doubt that's an issue
Re-applying is only an issue for chemical sunscreens. |
Does anyone know of high PPD physical (non nano) sunscreen/sunblock? PPD is important to me because I don't care too much about tanning as much as I care about aging . I currently use Bioderma, but am concerned about generating free radicals everytime I forget to reapply.. Since I work from home, I don't mind if the product is pasty white, so long as it's not too sticky. Any recommendations would be much appreciated. Thank you! |
_________________ Asian. Near 30. Prone to broken caps, moles + freckles, large congested pores, hormonal cystic acne, flaky skin and fat puffy eyelids. Staples: Bioderma SS, Taz, Dr. Kassy's C, Skinoren, HQ, Cerave and growth factors-- but also trying EVERYTHING ELSE..... |
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Tue Jul 14, 2009 6:55 pm |
I think it's no need to do that if SPF is enough. I apply SPF 50 on my face and it can protect around 8 hours. |
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Wed Jul 15, 2009 8:23 pm |
PPD is a european rating. No american sunscreen is going to have a PPD rating. Since I use purely zinc oxide based sunscreens, I go by the % of zinc oxide. Devita has 14% zinc oxide. Pratima has 18.6% zinc oxide, which is a really good amount. Nanci of NCN has a sunscreen with 25% zinc oxide which is probably the most you'll find, but it's really rich. She's working on a lighter formula now.
[Disclaimer: I'm not too concerned about nano sized zinc oxide. I don't know what size the zinc oxide in Pratima is]
fat_swan wrote: |
Does anyone know of high PPD physical (non nano) sunscreen/sunblock? PPD is important to me because I don't care too much about tanning as much as I care about aging . I currently use Bioderma, but am concerned about generating free radicals everytime I forget to reapply.. Since I work from home, I don't mind if the product is pasty white, so long as it's not too sticky. Any recommendations would be much appreciated. Thank you! |
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_________________ 24 yrs old. favorite sunscreen right now: Burnout [now 35] |
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Wed Jul 15, 2009 10:20 pm |
Nimue, great info. I didn't know about those details. |
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Thu Jul 16, 2009 2:46 am |
Angy wrote: |
thanks Nimue.
I just found out about Natural Instincts (Australian) nano free and only zinc oxide, which sounds really good. Has anyone tried it? |
Angy I've tried the Natural Instincts, but found it abit too greasy and whitening for my liking. |
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Thu Jul 16, 2009 4:02 am |
I never apply sunscreen while indoors. |
_________________ 33 yrs old - female - light brown hair with high lights - green eyes - medium/light skin tone yellow undertones : ROUTINE : (AM) Cold Water (PM) Facial Massage , OCM (1-2x Weekly) Home Facial (Monthly) Pro Facial ---- Things I am thinking about: Dermaroller, Facial Exercises, DIY Creams...JUST BOUGHT BABY Q POWER PACK -- Can't wait! |
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Thu Jul 16, 2009 8:29 am |
Mishey wrote: |
Angy wrote: |
thanks Nimue.
I just found out about Natural Instincts (Australian) nano free and only zinc oxide, which sounds really good. Has anyone tried it? |
Angy I've tried the Natural Instincts, but found it abit too greasy and whitening for my liking. |
I tried this one out on a recent holiday. Well, not on myself but I was in charge of applying to a friend several times a day.
Agree with Mishey's comments.... plus it's REALLY thick and difficult to spread. Was quite hard to even get out of the tube (I don't know, maybe I got an old tube?) Can't imagine putting this on your face for everyday use under make-up.
However, my friend was in the sun a lot, and usually tans easily, and he didn't get the slightest bit of colour/tan, which pleased him greatly ... |
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Thu Jul 16, 2009 8:54 am |
Nimue wrote: |
PPD is a european rating. No american sunscreen is going to have a PPD rating. Since I use purely zinc oxide based sunscreens, I go by the % of zinc oxide. Devita has 14% zinc oxide. Pratima has 18.6% zinc oxide, which is a really good amount. Nanci of NCN has a sunscreen with 25% zinc oxide which is probably the most you'll find, but it's really rich. She's working on a lighter formula now.
[Disclaimer: I'm not too concerned about nano sized zinc oxide. I don't know what size the zinc oxide in Pratima is] |
Thanks Nimue! I know that PPD is a European thing, what I meant was that I was looking for something that blocks out a large amount of UVA rays... The NCN product sounds really interesting, and I'll be sure to include that in my next order. Thanks for letting me know about it! |
_________________ Asian. Near 30. Prone to broken caps, moles + freckles, large congested pores, hormonal cystic acne, flaky skin and fat puffy eyelids. Staples: Bioderma SS, Taz, Dr. Kassy's C, Skinoren, HQ, Cerave and growth factors-- but also trying EVERYTHING ELSE..... |
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