Nanoparticles and sunscreens: Five things worth knowing
ฝัง
- เผยแพร่เมื่อ 21 ก.ค. 2024
- What are the risks and benefits of using nanoparticles like zinc oxide and titanium dioxide in sunscreens? And are they better or worse than chemicals like oxybenzone?
For more information on the pros and cons of nanoparticles in consumer products like sunscreens, check out the links below. And please remember to join the conversation in the comments.
Topics covered: nanoparticles in sunscreens, active ingredients, titanium dioxide, zinc oxide, nanoparticle risks and benefits, nanotechnology, risk assessment, cancer risk.
The Risk Bites Team:
Andrew Maynard
David Faulkner
Alyssa Berry
Risk Bites is supported by the ASU Risk Innovation Lab and School for the Future of Innovation in Society
Backing track: Based on Blue and Green by Rimsky. www.premiumbeat.com/royalty_fr...
FURTHER INFORMATION AND READING
European Commission review of zinc oxide in sunscreens: ec.europa.eu/health/scientific...
European Commission Scientific Committee on Consumer Safety Opinion on Titanium Dioxide (nano form) ec.europa.eu/health/scientific...
Environmental Working Group -- The Trouble with Sunscreen Chemicals: www.ewg.org/2014sunscreen/the-...
The Nanotechnology in your Sunscreen -- The Guardian: www.theguardian.com/science/sm...
Risk Bites is your guide to making sense of risk. We cover everything from understanding and balancing the risks and benefits of everyday products, to health science more broadly, to the potential impacts of emerging technologies, to making sense of risk perception. If you enjoy our videos, please subscribe, and spread the word! - วิทยาศาสตร์และเทคโนโลยี
We live in Belgium. Summer, that's one great day ;-) Thanks for making this video, they should theach people more about it!
Brilliant! Highest good info content per unit time I have ever seen! Well done.
Thanks Michael!
Informative and entertaining!
Just one comment - what is the evidence on penetration of damaged skin such already sunburned or eczematous?
thanks for this little funny looking education video on sunscreen and nanotechnology :)
Nittany Jones My pleasure ;)
I really appreciate you taking the time in order to educate others on such a confusing topic but I'd like to add my two cents into the mix. For starters both inorganic and organic SPF formulas require you to apply them 15 to 20 minutes before going out in the sun not because they need time to sink into your skin but because they need time to form an even layer on your skin. Secondly the whole fear-mongering around organic filters and them acting like phyto hormones is blown out of proportion, people worried about soy products containing phytoestrogens and that they could cause similar effects as the hormone estrogen however in the East there is a large consumption of soy and soy products and yet we don't see higher cases of gynecomastia in males assigned at birth. Third when it comes to worrying about breathing in the filters through spray cans that already gets into a discussion about if aerosol is safe or not and if that's going to be safe for people who are allergic to aerosol and are near by and the fact that it is very difficult to gauge if you're using the right amount of sunscreen when using a spray formula. There are a lot of people in the comments asking about if it sinks into skin that already has some kind of concern such as eczema or a weakened moisture barrier however inorganic filters are known for being less irritating than their organic counterparts. I have to admit myself but I still are a Crossroads between whether or not I want to see me using organic SPS formulas or switch to an organic formulas as my experience with an organic formulas has been full of pasty white an unpleasant formulas. Ultimately it is up to us to choose which side of History want to be on and now that things are not as black-and-white as they seem
thanks for the comment. Do you how is it possible that nano dont penetrate through the skin and other chemicals penetrate? This does not make sense to me.
@@thisislookism1296 Research does seem to suggest that nano zinc actually does penetrate into the skin
@@thisislookism1296 Again like organic filters there's still not much we can say definitively on what effects it causes
@@seekeroftruth8758
It seems like they dont. Check these data out.
www.tga.gov.au/literature-review-safety-titanium-dioxide-and-zinc-oxide-nanoparticles-sunscreens
drive.google.com/file/d/1GxjpbkQ_l_7t1NOT0rcaVN9cDeRNqvz4/view
@@thisislookism1296 thank you namaste🙏🏻
Great video! Hope your findings apply to the products in my area aswell, probably does ;)
Thanks!
Not a word about environmental impact. What happens when these nano particles inevitably end up in our lakes, rivers and oceans?
NeoDemocedes We do not need sunscreens, just common sense.
Watch @Labmuffinbeautyscience she made a video on coral reefs on the impact of sunscreen filters
You mean when Sunscreen's nano particles go into water streams?
Why can't i find a recipe for sunscreen using titanium dioxide?
I wish the background music was a bit quieter to make it easier to hear what the man is saying.
So do I - and I'm the man :) This was three years ago - we've gotten better since then in balancing he video audio!
I have to do a report on nano-sunscreen I have no clue what to do.
I agree with almost all of your ideas except that the inhalation of nanoparticles during aerosol-applied sunscreen may penetrate deep into the lungs. The aerosol spray average droplet size is much greater than the nanoparticle size (orders of magnitude) and would be mostly filtered out through the respiratory tract.
msulliv7 Thanks for the comment - yes, the droplets produced by the spray will be in the micrometer range. However, particles as large as 5 micrometers - 10 micrometers can reach the deep lung when inhaled, and so act as a delivery mechanism for any nanoparticles they contain
1:18 don’t slip into skin
2:05 better than conventional that needs time to settle
2:10 uncoated particles can produce free radicals
2:36 non nano may be more harmful
I can’t win lol, I just bought a solara sunscreen that lists “non-nano, non-coated zinc oxide: 20%”
Quick Science!
Hi, I've found my Face Powder contain TiO2 as a sunscreen. But I don't know if it's naked or coated TiO2. My question is, if TiO2 (coated or naked) can be harmful for our skin? Can TiO2 ruin our skin?
E Yasmin The coated version - which manufacturers will tend to use - probably not. There isn't much research available on using photoactive TiO2 on the skin in cosmetics, although any risks would also need to be considered against the safety of other stuff used in face powder.
Hmm, technologies evolve, and with three years of experience with was and is going on, I doubt about safety of nanoparticles
01:29 what if you are cut, or razoreed. That guarantees penetration. Off topic nivea says do not use deodorant if you are cut because it is high risk for death disease. Do not use sunscreens, I have tons of people that work outside with dirty work and dust they are protected.
excuse me why did it say no snorting?! who the frick snorts suncream?!
In the case of spray sunscreen.
is nano titanium dioxiode safe in pregnancy and breastfeeding period?
I've seen reports that titanium dioxide is not safe at all. Best bet might be to use sunscreen with zinc oxide only... At least 20%. That's for general use. I don't know about use with pregnancy. Also I'm not an expert so you'll need to do your own research to determine what you feel is best for you. 🍀
Hey everyone in my science
Hey
hannah wells hi
I don't know if you're in my school. Hi there, earthling.
w8 is this the hannah wells i think it is? also hi there.
I used a nano sunscreen and developed morgellons disease
Jennifer Cochran: I have been thinking that is what happened to me also.
What is that?
industry standard/biased propaganda. Fact #1 is patently false. Nanoparticles are so small they pass right through the cell membrane and obstacles like the blood brain barrier are no challenge. The body doesn't recognize nanoparticles because they don't exist in nature and has little defense for them (the same reason GMO's are dangerous). Fact #3 said nanoparticles are often coated with aluminum which is neurologically problematic in itself. The best defense for sunlight is regulating your exposure to it period. Don't use chemicals, cover up or get out of it after sufficient time that your body needs it to generate life supporting vitamin D.
So wearing zinc on my lips is gonna kill me.. okay.