emptybits
Bemotrizinol is the ingredient being discussed.If you're
looking for a specific product to try, check out Ombrelle
and also La Roche-Posay's Anthelios line. I share this as
a Canadian (bemotrizinol has been available here for
years), but check the ingredients because it may vary by
country because of regulations.Aside: I did a bunch of
sunscreen research some time ago for my family. I like the
non-absorbing/non-reactive aspect of mineral screens but
settled on a chemical screen and bemotrizinol seemed
favoured but we landed instead on the Kinesys brand of
sprays which we love because they're very waterproof and
sweatproof in our experience but they feel like almost
nothing. YMMV.
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> culi
Synthesized from hydroxyphenyl-triazines (HPTs). HPTs
were invented to protect materials like automotive
paints, aerospace coatings, and heavy-duty plastics
from solar degradation.It doesn't seem to
bioaccumulate in marine organisms despite the fact
that it doesn't biodegrade. This seems to be due to
the sheer size of the compound making it not easily
cross the biological membranes. It does however
accumulate on lake and ocean bed sediments so there
are still some long term concerns.Overall it's
environmental profile seems like a huge step up from
previous classes of sunscreen chemicals but it's not
perfect either.
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> Grombobulous
Sadly, you'll have to wait for those brands in the
US.> DSM-Firmenich has exclusive rights to market
bemotrizinol in the U.S. for 18 months. It will be
sold under the brand name Parsol Shield.
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> > y-curious
Well, you could have and still can buy them
shipped from other countries on sites like eBay.
Shame it has to come to this in the land of the
free, however.
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> > > Grombobulous
I guess I'm unsure if the FDA approval makes
importing these legal.I also imagine that it's
not really worth doing just to get a specific
brand in terms of cost.An 18-month exclusive
period is annoying but not the end of the
world.
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> > > picofarad
Tpu were free to bid competitively to have
exclusive rights for your company. What's the
problem?
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> jzig
Thank you for sharing your experience. Any idea If I
search for Kinesys spray product on the American
Amazon site will it be the same? What are the active
ingredients?
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> > emptybits
Dunno. Brands definitely change their ingredients
to conform to national health/drug regs so I'd
inquire via their US site. kinesysactive.com
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> brynnbee
Anthelios line still contains homosalate in a
concentration 20x higher than recommended by EU. I do
like that brand a lot though.
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> chadcmulligan
+1 for La Roche - my daughter has fair sensitive skin
and burns easily, its the best she finds (in
Australia)
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> emeril
why not just get the least obtrusive physical
sunscreen like "clear" thinksport?My fear is that all
of these chemical based ones increase the rates of
disease in susceptible populations which is hard to
detect
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> > culi
The large physical size of the compound means it
has trouble passing through biological membranes.
This is why it has really low toxicity and doesn't
bioaccumulate despite the fact that it doesn't
biodegrade over time.It does seem to accumulate on
lake and ocean floors though. I think the larger
concern is not on human or animal health but on
long term ecological consequences which are harder
to study
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ChrisArchitect
Previously:
https://news.ycombinator.com/item?id=48507024and related
large discussion this week:European sunscreens are safer
than American
(2024)https://news.ycombinator.com/item?id=48503940
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fhdkweig
This topic has been posted at about the same time in
another thread, but neither has any
commentshttps://news.ycombinator.com/item?id=48523165
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hankbond
Would have liked to hear about the safety profile for
marine life that this has compared to other chemical
sunscreens.
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> y-curious
Cursory googling led to a bunch of commercial sites
calling it reef safe and they mostly reference this
article:
https://link.springer.com/book/10.1007/978-981-97-3195
-4I'm not paying for access to this and can't be
bothered to pirate it, I'm going to just believe the
front page of Google
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rdedev
I guess this is the reason why the sunscreens from
haruharu are now suddenly available in amazon
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mil22
BEMT is the first new ingredient allowed by the FDA since
the 1990s. It's meaningful but a very narrow decision. The
FDA still has not approved any of the following sunscreens
that have been widely used outside of the US, in some
cases for decades:- DHHB / Uvinul A Plus- EHT / Uvinul
T150- MBBT / Tinosorb M- Iscotrizinol / Uvasorb HEB-
Drometrizole trisiloxane - Mexoryl XL- Methoxypropylamino
cyclohexenylidene ethoxyethylcyanoacetate - Mexoryl 400-
Polysilicone-15 - Parsol SLX- Disodium phenyl
dibenzimidazole tetrasulfonate - Neo Heliopan AP-
Tris-biphenyl triazine - Tinosorb A2B- Phenylene
bis-diphenyltriazine - TriAsorB- Diethylhexyl
syringylidene malonate (photostabilizer)If you live in the
US, you are quite literally taking a risk with your health
using US-made sunscreens. Luckily brands like Beauty of
Joseon (Korean) and many others are readily available
through sites like Yamibuy.
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> qwerpy
No one cares more about sun protection than Asian
women living in SoCal. My wife and her friends usually
use Korean or Japanese brands that they buy here in
the states. Seems to work just fine.
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> OutOfHere
There is no risk with using zinc oxide 24%. It works
too well and is safe.The risk is with chemical
sunscreens having hormone disrupting effects, although
bemotrizinol is expected to be safer in this regard,
especially if it's not stacked with older harmful
chemicals.
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> > mil22
Yes, if you're savvy enough to know to stick to
sunscreens that contain zinc oxide as the only
ingredient (I don't think most people are), and
don't mind looking like a ghost (the white cast)
or getting white marks on your clothes, this is a
safe and effective option. If you aren't checking
the ingredients lists carefully, like most people
aren't, and you don't know that most
sunscreen-containing products in the US are
hormone disruptors, like most people don't, your
health is at risk.
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> > > OutOfHere
What is your belief with regard to
bemotrizinol in this matter?
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> retired
You are taking a risk with your health by importing
sun screen that has not been FDA approved.
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> > mil22
It may surprise you to learn that there are
countries that have better laws and regulations
than the US.
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> > > retired
Such as? Most of Europe has far less
regulations when it comes to sunscreen, as it
is classified as cosmetics not drugs.
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erelong
certain long clothes allows for skipping sunscreen
entirely in perpetuity
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> andrew_lettuce
This isn't realistic for something likeriding your
bike where you get lots of sun on your face and limbs.
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> > milch
The limbs you can deal with, at least. I've done
century rides in 100°F+ weather wearing UPF 50
sleeves the whole way... it's actually quite nice
because you dip them in water, and they end up
staying saturated for a long time. Together with
the airflow from the ride it keeps you cool as
well as protecting from the sun
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> bawolff
Unless you are talking about a Burqa, i think that is
not true.
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> > userbinator
Also a https://en.wikipedia.org/wiki/ThawbWhile
this is commonly brought up as a religious issue,
religion obviously predates sunscreen but not
sunburn, so it could've originally been a
practical reason --- elevated to religious dogma
--- why it is customary from that part of the
world to wear highly concealing clothing.
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> OptionOfT
Your clothes still need to have a certain SPF, and
you're not gonna wear gloves when 100 outside are you?
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> > gibspaulding
Just about any shirt is going to have a higher
spf/upf than any normal sunscreen. Also who puts
sunscreen on their hands??A long sleeve sunshirt
with a hood or better yet a floppy hat is where
it's at. I have a couple of the Colombia PFG ones
that I wear for working outside, though I'd like
to see if I can find something cotton instead
since I'm not a huge fan of synthetic fibers.
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> > > hilariously
I put sunscreen on my hands or I will have
completely burnt hands. There's many of us who
cant have more than about an hour in direct
sunlight (and sometimes much less) before
redness and soon burning occurs.
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> > > gacgacgac
Who puts sunscreen on their hands? People in
the sun who want to avoid wrinkles and burns
and skin cancer on their hands.If it's exposed
skin, it gets sunscreen.
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> > > ViscountPenguin
Nearly everyone I know puts sunscreen on their
hands. Here in Australia, the world melanoma
capital, sun safety is drilled into you as a
kid, to the extent that "no hat no play" used
to be official policy in most schools.
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> > > erelong
Pretty much thisAlso for the other comments
there are gloves and face masks but I think
most people do fine without them unless you're
working outsideFor the nerds here working
indoors during the hottest times of the day...
they may need more sun than they get really,
rather than blocking it with toxic sunscreens
(depends on where they live?)
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> > > XorNot
While generally true, it's worth remembering
that thin shirts can have an SPF as low as 50
or so, which isn't much.
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> > > > hollerith
It means only 2% of the harmful rays (UVA)
are getting through the shirt or
alternatively the skin under the shirt can
spend 50 times as long in the sun as it
could without any protection.
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> > > > > hollerith
Correction: UVB, not UVA.Correction:
the standard used for clothing is UPF,
not SPF. They're similar, but there
are differences.
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> > > > kube-system
SPF is logarithmic so high numbers can be
misleading. The FDA has recently banned
labeling above SPF 60 for this reason.
Doctors usually recommend 30
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> > > > tabletcorry
A typical tshirt is closer to SPF 7,
depending on color and weight.
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> > > > > omnimus
Just from basic logic this has to be
false. Maybe there are some
translucent t-shirts that are SPF 7
but my skin always reacts much more to
sun exposed parts that have SPF
applied than it ever did under
t-shirt. And no i use high quality
SPF50 and reapply.
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> > > > > hollerith
That sounds right, but SPF 50 shirts
are readily available, and at least
the ones made from polyester are
cheap.
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> > > borski
I put sunscreen on my hands.
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> > > adambatkin
People who don't enjoy sunburns on their hands
put sunscreen on their hands.
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> retired
Staying behind UV protective glass panes while
browsing Hacker News does the same.
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