You NEED to use Sunscreen! - Doctor explains.
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- Опубликовано: 17 май 2024
- Welcome back to How To Medicate and welcome to this video where we will cover everything you need to know about sunscreens. This video is part of a video series on your skin. We will cover all kinds of skin related problems and drugs. So for more skin related videos check out this playlist:
• Everything on a health...
Why should you use sunscreen?
This is necessary because the sun can be harmful, especially it’s ultraviolet rays. Ultraviolet rays consists out of wave of different wavelengths. Two important types are UVA and UVB rays.
- UVB only reaches the superficial levels of our skin. Too much exposure to UVB can cause a sunburn. The intensity of UVB rays increases during summertime, explaining why we commonly experience sunburns in the summer.
- UVA rays goes much deeper into our skin. Therefore they can cause damage to the DNA of our skin cells, leading to uncontrolled growth of some of these cells and ultimately to skin cancer. UVA rays also leads to an accelerated ageing of the skin. It lowering the elasticity of the skin and makes it saggy. The intensity of UVA rays remain constant throughout the year.
Physical vs. Chemical blockers.
Chemical blockers absorb the suns rays. The upsides: they are easy to apply, transparent and cheap. The downsides: they can cause irritations of the skin and it takes 15 minutes before they become active.
Physical blockers reflect UVB as a physical barrier. This is done with zinc or titanium. The upside: they cause less irritation of the skin, they work immediately and they have a higher UVA protection.
The downsides: they can leave highly visible marks and they are more expensive.
Does SPF matter?
SPF stand for sun protection factor. Which is a measure of the protection against UVB-rays the sunscreen gives you. It practically tells you how well you are protected against a sunburn. SPF does not measure UVA protection.
Best practises:
- Use a sunscreen with a SPF-grade of at least 30 and protection against UVA.
- Use 5 grams of sunscreen and apply it on all the parts exposed to the sun.
- Apply it 15-20 minutes before you go outside and re-apply it every 2-3 hours, re-apply it after swimming or after sweating a lot.
- You can also wear protective clothing with an ultraviolet protection factor: UPF.
- It is important to stay a much as possible in shaded area’s
- Avoid the sun at peak hours: 10am to 4pm.
- Children younger than 6 months should have almost no exposed to bright sunlight.
- Disclaimer: this video and the comments are meant purely informational! This is not medical advice! If you are looking for medical advice always contact your own doctor. -
Literature:
1: Latha M.S. et all. (2013). Sunscreening Agents. J Clin Aesthet Dermatol. 2013 Jan; 6(1): 16-26.
2: Levy S.B. (2018). Sunscreens and Photoprotection. Medscape.
3: Dr Davin Lin (2018). How to choose SUNSCREENS.
4: Ted-Ed (2013). Why do we have to wear sunscreen? - Kevin P. Boyd.
* The images in this video are used for educational purposes only. Most of the images and video material in this video come from www.canva.com/.
Music:
1. Atch. This Feeling. Music promoted by Vlog No Copyright Music.
2. Ikson, New Day, Music promoted by Vlog No Copyright Music.
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Books I used In Medical School:
Lehninger Principles of Biochemistry Seventh Edition, amzn.to/2PFGidh
Guyton and Hall Textbook of Medical Physiology 14th Edition, amzn.to/3inL6jM
Human Anatomy & Physiology (12th Edition), amzn.to/2DHlHCT
Oxford Handbook of Clinical Specialties, amzn.to/3fU854s
Oxford Handbook of Emergency Medicine, amzn.to/31LfMVg
Oxford Handbook of Clinical Medicine, amzn.to/3ky73hZ
Janeway's Immunobiology, amzn.to/3gLZW3e
Atlas of Human Anatomy (Netter Basic Science), amzn.to/3afFe9c
Netter's Anatomy Flash Cards, amzn.to/2XSAMIN
The House of God, S. Shem, amzn.to/31I7HAU
Gear I use:
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This basically answered all my questions. Thank you for making such a good video
thank you! this is very useful and also an extremely nicely made video
I enjoyed watching it :)
UVA protection is shown by PA(PAA). PA(A)++++ is a very high protection. As was told in the video, UVB protection is measured in SPF factor (15/30/50/50+).
I personally prefer a physical sunscreen. Though yes, most give you a white cast ( shade ), you can still find those, without it.
Love this video! Great to see a RUclipsr raising awareness on sunscreen - especially a doctor. Keep up the great posts.
Hi Aesthetics Kitten,
Thank you! Sunscreen is important 👍
great video :) i personally use the bondi sands fragrance free SPF 50 for the face (they have a body one too) and it works great for me as a person with dry skin. bondi sands is also an australian brand of sunscreen, which to me is a big plus because the regulations around SPF in australia are a lot stricter since they receive the strongest sun rays on the earth. some US sunscreens have been reported to have a lower SPF factor than what is advertised, so i refrain from using them unless i’ve done full research on the product i use.
i also love the bondi sands because it doesn’t leave a white cast on the face, so it’s perfect for darker complexions as well! the only drawback is that it has chemical UV filters in the active ingredients. that being said however, any sunscreen you use is going to be worth it no matter if it’s mineral, physical, or chemical.
Very concise. Thank you for the video
That was very helpful. Thank you!
You cleared up so many questions I had about sunscreen and its spf, thankyou so much this was very informative. I can now protect my skin better
An excellently made video, very clear and concise. I hope many people can watch it, thank you doctor!
Thanks for the feedback Nico!
Thank you, Sir!
Great information.
Thanks Doc
Thank you Janice!
Very informative video! Thanks so much for sharing! Please do more skin care videos
Thank you Victoria. I am happy to help 👍🏻
Does homosalate, Octycrylene and octisalate go together with Uvinal A and Tinosorb M? I ask because I put a tinted spf over a Korean PA+++ and I don’t want to affect the effectiveness.
I ask because I use the Korean sunscreen Beauty of Joseon and then I put IT cosmetics cc cream, SPF 40 over the top.
Good day doctor, I am chef cook and I am exposed to heat and i have melasma what is heat protection i use sunscreen or sunblock? Thank you and God bless
Dr, how to know if product is chemical based? And can sweat and ocean wash the sunscreen away?
Sir I have bachelor degree of mlt(pathology) can i get admission in 3 year md parogramme in netherland please guide meee
What is tha name of anti aging cream from pakistan please tell me
Great vedio
Q.S.:
1.Does sunscreen protects from visible lights? &
2.does sunscreens protect from tanning?
What if I work in construction I’m in the sun all day which one should I use ?
Great video doc! Keep it up!
Thanks Jade! It means a lot to me!
Hi!! Is wearing sunscreen improve sun damage skin? I have not been aware of using it in my childhood life, a reason for sun damage skin. Now i start using it, will it help me?
Hi Ellvine,
The usage of sunscreen will protect you (partly) from possible further damage of the sun to your skin.
I am still confused. Should I use a lower SPF (15-30) or a higher ?
Higher
After use sunscreen how to wash face
i really love freckles and when i get sun burned i get freckles. if i wear sunscreen, will it still give me those mini freckles or that cute sun burned look?
Look up “freckle makeup” or “faux freckles.” There are products on the marks that make freckles look realistic and you don’t need to sacrifice your skin to get the look.
Everyone's different but I actually get MORE freckles when I wear sunscreen than when I forget sunscreen!
freckles are sun damage
Should you use after sun sunscreen or sunscreen to protect from the sun?
Sunscreen to protect. After sun is only a relief for burned skin.
Thanks I’m gonna buy some of that banana boat SPF 50 I’m 16 and I want to fix my skin
I usually buy sunscreen with SPF 70... I have very pale skin and live in a very sunny place. Is 50+ enough?
How about vitamin D, does sunscreen compromise vitamin D levels?
Hi Everything,
Great question. As far as I know sunscreen does not compromise vitamine D levels. It only blocks UVA and UVB rays.
@@howtomedicate I would think that anything that blocks ultraviolet exposure would also prevent your body from making vitamin D. However, since over the counter vitamin D3 supplements are very effective, this is completely moot. I say stay out of the Sun as much as possible, take a vitamin D3 supplement, have your doctor monitor your vitamin D, adjust your dosage as needed and most importantly, use sunscreen with good UVA protection.
It does hahahahahaha this guy is deceiving you
@@johnyanez4962 not exactly. Sunscreen doesn't 100% block all rays, it's just to Minimize exposure, hence you STILL get vitamind d
I would think.. And correct me if I’m wrong. The vitamin d metabism is stimulated by UVB. So in the winter you could use spf 15 because it will always block UVA but the vitamin d metabolism will be more because a lower spf equals a lower UVB blockage. And In the summer the exposure to UVB is enough and you need the protection against sunburn so use an spf 30 or 50.
Not me trying to identify and read the titles on the books behind him...
Does sunscreen keep the skin significantly younger ?
Hi Ken,
Sunscreen protects your skin from damaging UV-radiation. This delays "aging" of the skin.
Are you smiling or ...?
What kind of sunscreen do you have to use
Any kind that is broad spectrum or PA++++ -use one that suits your skin issues/needs & particularly one that you’ll actually use & enjoy & reapply.
"The sun is trying to kill you" ...probably the greatest marketing/fear scam ever created.
did you just repeat ted talk video word to word or am i wrong
He’s cute.
u didnt have to copy someone else's video.
It's worth mentioning five things here: 1) non-burning UV exposure is critical to the proper function and development of the human body. People who chronically get insufficient non-burning UV exposure are at higher risk for obesity, metabolic syndrome, type I diabetes, type II diabetes, colorectal cancer, pancreatic cancer, prostate cancer, breast cancer, non-Hodgkins lymphoma, asthma, allergies, eczema, rheumatoid arthritis, non-alcoholic fatty liver disease, multiple sclerosis, psoriasis, schizophrenia, statin intolerance, macular degeneration and myopia and have higher all-cause mortality rates than people who get sufficient non-burning UV exposure. Chronically insufficient non-burning UV exposure also makes one more susceptible to a wide range of infectious diseases. 2) There is no consistent evidence demonstrating that using sunscreens lowers one's risk of getting skin cancer. In fact, evidence suggests the opposite may be the case. 3) All active ingredients used in sunscreens have safety issues. Many of them are suspected carcinogens, many others are endocrine disruptors and some of them are both. Scientific studies have found that these chemicals are absorbed into the body and are detectable in the blood within minutes after sunscreen is applied to the skin. 4) Excessive use of sunscreen can lead to vitamin D insufficiency/deficiency and chronic insufficient UV exposure, along with the increased risk of the above mentioned health problems. 5) Malignant melanoma, the most aggressive form of skin cancer, is one of the easiest forms of cancer to diagnose and cure. It currently has a survival rate of 92%. All of the forms of cancer associated with chronic UV underexposure are more deadly than malignant melanoma.
Most people in the developed world are now chronically UV underexposed, and it is the cause of a major public health problem.
Proof?
@@eliasvik3792 Look up "The risks and benefits of sunshine 2016" for starters.
your sunglasses are spf 0 tho
Bro 😂
Tells you to wear sunscreen and also states it comment he doesn’t know if it blocks vitaminD😂
It’s like he’s reading off a big pharma script
There are a lot questions which are still unanswered in the field of medicine. Researches are going on.
Why on earth are you wearing a stethoscope when talking about sun screen? This doesn't really make you look more trustworthy... quite the opposite.
I've never used sunscreen and never will. If you notice when you're told to use sunscreen doctors and others tell you to use one with the highest factor number. They must be on a commission as the one they suggest is the highest factor therefor the most expensive.
I hope you don’t breed
@@jaimiclu7913 I hope you don't breathe long
Enjoy your wrinkles and cancer 😘
@@glyn2370 In the video he said that factor didn't matter for the skin benefits. Factor only applies to how long you can stay in the sun without getting sunburbed.
@@glyn2370 Say that again when you have wrinkles and skin cancer in your 30s 😊
This guy ain't no dr!