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Mon Jan 22, 2018 11:12 pm |
I put Retin A on before I go to bed and then I replace it with sunscreen when I wake up. I sleep with my head next to two large windows with voile but no blind.
My question is could I incur sun damage in the morning or at night if the sun has risen or not set and I have not got sunscreen on? |
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Tue Jan 23, 2018 3:50 am |
Yes you can experience damage from sleeping next to a window. UVA and UVB rays (which are the damaging ones) can penetrate glass so you would get hit with them sleeping by large windows.
This is counter productive. Why not just invest in some blinds? |
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Tue Jan 23, 2018 10:28 am |
Moon wrote: |
I put Retin A on before I go to bed and then I replace it with sunscreen when I wake up. I sleep with my head next to two large windows with voile but no blind.
My question is could I incur sun damage in the morning or at night if the sun has risen or not set and I have not got sunscreen on? |
I don't think you will incur any damage at night as there are virtually no UV rays in the night but in the morning possibly but unlikely as well since the UV rays are very low in morning. It depends also on how early you wake up, 6-8 am you should be ok. |
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Tue Jan 23, 2018 10:49 am |
This is completely incorrect. Even though UVA and UVB rays are considered lower in the morning, they are still very much present. Remember with sun damage it doesn't take a lot of rays to do the damage. You only need a small spectrum. Without knowing where the original poster is from, I think its unsafe and unwise to set the hours of 6-8 am as being safe or okay.
Aimeloi wrote: |
I don't think you will incur any damage at night as there are virtually no UV rays in the night but in the morning possibly but unlikely as well since the UV rays are very low in morning. It depends also on how early you wake up, 6-8 am you should be ok. |
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Tue Jan 23, 2018 11:16 am |
I guess the point I'm making is that if she gets up before sunlight, it should be ok. Of course it does not mean that one doesn't incur any damage, even with sunscreen you can still incur damage. If you spend a long time in front of your window then I would worry about it.
Now this is just my opinion as I am not an expert but generally dermatologist recommend you apply sunscreen in the morning after your skin care and reapply if you go out every two hours so I am just going by that.
Naturally it is better to prevent and perhaps getting blinds would be the best way to do so. |
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Wed Jan 24, 2018 5:56 am |
The point I'm making though is if the OP sleeps by a window and doesn't get up at the sun rise,
then both UVA and UVB rays can and will cause damage.
The trouble with both is that the damage that they cause isn't always immediately visible.
Up to the 1990's little to anything was known about UVA and UVB and the skin damage caused.
Which is why most of the sunscreens then didn't cater for them. Any exposure is exposure to risk no matter how young/old a person is.
Dermatologists recommendations are not geared for those that sleep by windows and whilst thats probably not something everyone will deal with, if anyone does, I really believe that their recommendations would be to be concerned over damage that can be there.
Prevent is always better than cure - I agree with you on that. |
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Wed Jan 24, 2018 10:29 pm |
Dear all,
Thank you for your helpful replies.
For the record I live in UK and I do have blinds but I like to sleep with them up because the room feels stuffy if I put them down.
Am seriously looking in to buying a tent for my head! For the moment though I am taking the retin a off when it is stil dark. Can I definitely assume that there is no risk of sunburn from uv rays at night? E.g. Could I safely go out at night without sunscreen on if I was using retin a?
Best Wishes to all |
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Thu Jan 25, 2018 12:41 am |
I'm UK based too, and have used retin A under the same dermatologist (all varieties) for the last 40 plus years (actually I'm nearly 70 and so its coming close to 50 now).
Now its probably because you haven't used it long, but when you apply Retin A - the reason it makes the skin photosensitive is because it penetrates the derma deeply (moreso than other topicals) when you say you are "removing" it - its unlikely you actually are. So you still run the risk of UVA and UVB damage even if you are doing so. You may be better off not using it till you can sleep without exposure to UVA and UVB rays or using some form of protection so the exposure is limited completely.
Recent UK materials suggest that people rising at 7am have experienced both UVA and UVB exposure - and the starting fact is that whilst its light at that time, its not necessarily sunny - and UVA and UVB damage has been proven to happen at that hour by a university. I will try and dig it out - but it was on pubmed at one point and should still be there if you are interested.
Moon wrote: |
Am seriously looking in to buying a tent for my head! For the moment though I am taking the retin a off when it is stil dark. Can I definitely assume that there is no risk of sunburn from uv rays at night? E.g. Could I safely go out at night without sunscreen on if I was using retin a?
Best Wishes to all |
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Thu Jan 25, 2018 7:10 am |
Hi Theresea Mary thank you for your response.
Wow 50 years! I bet you look really young
That is very interesting about not really removing retin a as being the cause of skin sun sensitivity. I guess my plan was to put sunscreen on straight after having a wash while it is still dark and then wash off the sunscreen and apply fresh retin a when it is dark at night while I figure out a way to cope as the days get longer.
Don't worry am well aware of how important uv protection is in any weather is with retin a. I used to use it on the stretch marks on my tummy as well as on my face. One grey cloudy day when I was outside I thought it might be ok to check if the stretch marks had "gone" so I lifted up my top for two seconds to look and pow the exposure gave me pigmentation. So then I had pigmentation to deal with as well as the stretch marks lol Had to have a peel and laser to remove it! |
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