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Subject: Re: [worldcruising] Doctors, please explain
From: Douglas (dkendall@XXX.XXX)
Date: Thu Feb 22 2001 - 08:13:20 EST
Just checked my sun screen; Coppertone Sport, SPF 30. Ultra
Sweatproof. Most swimmers in Hawaii use it for the obvious reason. If
you are on a 2 plus miles swim, you will get a lot of exposure. One of
the iactive ingredients is ethylhexyl p-methoxycinnamate. Is this close
to the OMC as noted earlier?
tiafn
doug
Barry Brazier wrote:
> A barrier cream has to have an absorbent of some kind. Any molecule
> that
> absorbs UV has to be reactive. If one cream uses a different absorbent
> it
> may be just as bad. Just means no one has tested it.
> Generally the testing required to permit a chemical in cosmetics is
> exhaustive. Toxic materials can be allowed at appropriate levels based
> on
> anticipated usage.
> For a sailor out in the sun all day the amount needed to be applied
> over the
> day for several days may be too much of any absorbent. Even one with
> no
> current bad history.
>
>
> Barry
>
> -----Original Message-----
> From: Plottier [mailto:arthur@XXX.XXX]
> Sent: Wednesday, 21 February 2001 2:38 PM
> To: worldcruising@XXX.XXX
> Subject: RE: [worldcruising] Doctors, please explain
>
>
>
> Hi Barry,
>
> Appears that you do not understand the point!!!!
> Why few companies offer the option of producing and selling the
> barrier
> creams without the chemicals absorbents?
>
> If they are doing the same job, get rid of the ones with chemicals and
>
> inform the people why!!
>
> That's the point!!
>
> Cheers
>
> Arthur
>
>
> At 09:16 AM 21/02/01 +1100, you wrote:
> >Every thing we eat and drink and apply to our skin contains poisons.
> >There are far more naturally occurring toxins in natural material
> than in
> >there are added. At least the commercially added stuff is tested.
> >You cannot live with out low levels of exposure to toxicity.
> >With the right test you can kill cells with carrot extract.
> >Here in Australia we have one of the highest rate of skin cancer.
> >Sun screen is definitely a must in exposed skin.
> >All creams will have something in them to be effective so the best
> action
> is
> >to minimise the use by covering up as much as possible.
> >When sailing over seas it is often said you can tell who are the
> Australian
> >by the way the wear long sleave shirts and hats while all the
> Europeans are
> >as exposed as possible
> >
> >Barry
> >M.Sc., M.Phil (London)
> >Lecturer Biochemistry
> >
> >-----Original Message-----
> >From: arthur@XXX.XXX]
> >Sent: Wednesday, 21 February 2001 8:48 AM
> >To: worldcruising@XXX.XXX
> >Subject: [worldcruising] Doctors, please explain
> >
> >
> >Hi,
> >
> >As we all know sun cancer is a problem that concern all of us and we
> >look for "proteccion" as recommended by the people that know about
> >this subject.
> >
> >We believe on them an carry on sailing.
> >
> >Cheers
> >Arthur
> >
> >The other day selecting a sun barrier cream I notice that there are
> >two types: one without chemical absorvents and the other (the most
> >popular)without comments about "absorvents"
> >
> >After done same research on the Net I come with the attached *.doc
> >
> >Please read it and Drs. in the group explain to us about it. Looks to
>
> >me that it is not "plain sailing"04 Oct 00 - Food Safety -
> >Sunscreens 'may be toxic'
> >BBC
> >
> >BBC News ... Wednesday 4 October 2000
> >
> >A chemical used in most sunscreens to protect against skin cancer
> >could damage human cells , according to a study.
> >
> >Research carried out in Norway found that octyl methoxycinnamate
> >(OMC), which is used in 90% of sun creams to protect against ultra
> >violet rays, could be harmful if it seeps into a person's blood
> >stream.
> >
> >The scientists based their findings on tests they carried out on
> mice.
> >
> >They added small concentrations of the chemical to an ethyl alcohol
> >solution containing mouse cells.
> >
> >They found that while over 90% of the cells survived when put in this
>
> >solution, half were killed when the OMC was added.
> >
> >They then place the solution under a lamp for two hours to simulate
> >the effects of the chemical in sunshine.
> >
> >Under these conditions, the chemical was found to kill even more
> >mouse cells.
> >
> >The scientists, from the Norwegian Radiation Protection Authority,
> >suggest that this is because the chemical becomes twice as toxic when
>
> >it comes into contact with light.
> >
> >They add that the chemical could damage human cells if it penetrates
> >the skin and warn the public only to use sunscreens that contain OMC
> >when they have no other choice.
> >
> >But the findings of the study have been dismissed by the Cosmetic
> >Toiletry & Perfumery Association, which represents sunscreen
> >manufacturers in Britain.
> >
> >OMC has been approved for use as a sunscreen for many years and has
> >been thoroughly tested for safety said a spokeswoman for the Cosmetic
>
> >Toiletry & Perfumery Association, the findings could not be applied
> >to people who use sunscreens normally.
> >
> >She added that the chemical had been "thoroughly tested" and was
> >approved by authorities in the UK and US.
> >
> >"OMC is approved and listed in the Cosmetics Directive and is also
> >approved in the Food and Drugs Administration Sunscreen Monograph in
> >the USA as a safe and effective sunscreen.
> >
> >"OMC has been approved for use as a sunscreen for many years and has
> >been thoroughly tested for safety."
> >
> >Advice Dr Charlotte Proby, a consultant dermatologist with the
> >Imperial Cancer Research Fund said: "It is difficult to extrapolate
> >from laboratory experiments in mice to humans out in the sun.
> >
> >"Undoubtedly the best advice is to avoid the sun and cover up with
> >clothing, and wear a hat and sun-glasses.
> >
> >"However, using sunscreens to prevent sun damage to cells is likely
> >to reduce the risk of skin cancer development, and is far better than
>
> >not using any sun protection at all."
> >
> >
> >
> >
> >
> >
> >
> >
> >=====================================
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> >
> >
> >___________________________________________
> >William Angliss Institute of TAFE
> >The First Choice
> ><http://www.angliss.vic.edu.au>http://www.angliss.vic.edu.au
> >
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