Re: re: sunscreen/Scary news

June 19, 2002

> http://www.mercola.com/2000/oct/15/sunscreen.htm

This is pretty scary. I use sunscreen everyday in my neutrogena healthy

defense moisturizer spf 30. Has anyone else out there ever heard of

sunscreen being a carcinogen?

June 20, 2002

Actually yes...I heard that from my Biochemistry

professor last semester. Specifically she mentioned

that the chemicals PABA, zinc oxide, and one other one

that I can't remember at the moment cause chromosomal

damage, resulting in an increase in the incidence of

basal cell skin cancer (not melanoma though). I have

since stopped using moisturizers with sunscreen in

them. I do however believe that sunblock (as opposed

to sunscreen) is safe to use.

Sincerely,

Carol

--- Cxhforever@... wrote:

>

> > http://www.mercola.com/2000/oct/15/sunscreen.htm

>

> This is pretty scary. I use sunscreen everyday in

> my neutrogena healthy

> defense moisturizer spf 30. Has anyone else out

> there ever heard of

> sunscreen being a carcinogen?

>

> [Non-text portions of this message have been

> removed]

>

> --

> Please read the list highlights before posting to

> the whole group (http://rosacea.ii.net/toc.html).

> Your post will be delayed if you don't give a

> meaningful subject or trim your reply text. You must

> change the subject when replying to a digest !

>

> See http://www.drnase.com for info on his recently

> published book.

>

> To leave the list send an email to

> rosacea-support-unsubscribe

>

June 20, 2002

Perfect. I cant get a break. I just start getting excited about

physical sunblocks and now even they " cause cancer " . I have seen no

proof of this. The first post about this came from some strange

website and now we have " i heard from so and so " . If you look hard

enough on the internet you will find everything causes cancer. Does

anyone know of any reall studies or evidence of Zinc Oxide causing

cancer?

Patty

> >

> > > http://www.mercola.com/2000/oct/15/sunscreen.htm

> >

> > This is pretty scary. I use sunscreen everyday in

> > my neutrogena healthy

> > defense moisturizer spf 30. Has anyone else out

> > there ever heard of

> > sunscreen being a carcinogen?

> >

> > [Non-text portions of this message have been

> > removed]

> >

> > --

> > Please read the list highlights before posting to

> > the whole group (http://rosacea.ii.net/toc.html).

> > Your post will be delayed if you don't give a

> > meaningful subject or trim your reply text. You must

> > change the subject when replying to a digest !

> >

> > See http://www.drnase.com for info on his recently

> > published book.

> >

> > To leave the list send an email to

> > rosacea-support-unsubscribe@y...

> >

June 20, 2002

is the other chemical Titanium Dioxide (or similar)?

p.s. I think zinc oxide is considered a sunblock

> >

> > > http://www.mercola.com/2000/oct/15/sunscreen.htm

> >

> > This is pretty scary. I use sunscreen everyday in

> > my neutrogena healthy

> > defense moisturizer spf 30. Has anyone else out

> > there ever heard of

> > sunscreen being a carcinogen?

> >

> > [Non-text portions of this message have been

> > removed]

> >

> > --

> > Please read the list highlights before posting to

> > the whole group (http://rosacea.ii.net/toc.html).

> > Your post will be delayed if you don't give a

> > meaningful subject or trim your reply text. You must

> > change the subject when replying to a digest !

> >

> > See http://www.drnase.com for info on his recently

> > published book.

> >

> > To leave the list send an email to

> > rosacea-support-unsubscribe@y...

> >

June 20, 2002

meant for the group.

----- Forwarded message from bunnyygirl -----

Date: Thu, 20 Jun 2002 22:16:04 -0000

Reply-To: bunnyygirl

Subject: Re: re: sunscreen/Scary news

To: rosacea-support-owner

I'd like to see some " HARD " proof of this also. I have noticed that

alot more sunscreens are saying " paba free " , but I think you'll find

the majority of doctors & dermatologists say that Zinc Oxide is the

best thing to block the sun's harmful rays. I think they would be on

the front lines to know if zinc oxide was cancer causing. Also, Zinc

Oxide has been in use as a sunscreen element for many many many

years - we would surely have heard by this time if it was a

carcinogenic property that is causing people to get types of skin

cancer.

> > >

> > > > http://www.mercola.com/2000/oct/15/sunscreen.htm

> > >

> > > This is pretty scary. I use sunscreen everyday in

> > > my neutrogena healthy

> > > defense moisturizer spf 30. Has anyone else out

> > > there ever heard of

> > > sunscreen being a carcinogen?

> > >

> > > [Non-text portions of this message have been

> > > removed]

> > >

> > > --

> > > Please read the list highlights before posting to

> > > the whole group (http://rosacea.ii.net/toc.html).

> > > Your post will be delayed if you don't give a

> > > meaningful subject or trim your reply text. You must

> > > change the subject when replying to a digest !

> > >

> > > See http://www.drnase.com for info on his recently

> > > published book.

> > >

> > > To leave the list send an email to

> > > rosacea-support-unsubscribe@y...

> > >

June 20, 2002

I took a quick look at the site, saw a number of factual

discrepencies, and decided not to pay it more attention. Titanium

dioxide, like zinc oxide, is a sunblock, not a sunscreen -- even 5

years ago, the date on the referenced article. References about

sunscreens do not apply to them.

Marjorie

Marjorie Lazoff, MD

> > >

> > > > http://www.mercola.com/2000/oct/15/sunscreen.htm

> > >

> > > This is pretty scary. I use sunscreen everyday in

> > > my neutrogena healthy

> > > defense moisturizer spf 30. Has anyone else out

> > > there ever heard of

> > > sunscreen being a carcinogen?

> > >

> > > [Non-text portions of this message have been

> > > removed]

> > >

> > > --

> > > Please read the list highlights before posting to

> > > the whole group (http://rosacea.ii.net/toc.html).

> > > Your post will be delayed if you don't give a

> > > meaningful subject or trim your reply text. You must

> > > change the subject when replying to a digest !

> > >

> > > See http://www.drnase.com for info on his recently

> > > published book.

> > >

> > > To leave the list send an email to

> > > rosacea-support-unsubscribe@y...

> > >

June 21, 2002

Patty,

I'm sorry you are upset because I responded to a

question with an answer that is less than positive.

To respond to your comment about " I heard from so and

so " ...not only was this addressed in my biochemistry

class, it is also cited on page 225 of my Anatomy and

Physiology textbook (entitled Anatomy and Physiology:

The Unity of Form and Function, written by S.

Saladin)...feel free to reference it yourself if you

like.

Anyway to elaborate...the book states that recent

studies have shown that people who use sunscreens have

a higher incidence of basal cell carcinoma than people

who do not, while data relating to malignant melanoma

to sunscreen use are still contradictory and

inconclusive. Some of the chemicals used in

sunscreens damage DNA and generate harmful free

radicals when exposed to UV (specifically PABA, which

has now been discontinued, zinc oxide, and titanium

dioxide).

Currently this is all the knowledge I have on the

subject, although I am sure there is more out there if

you are willing to do the searching for it. Take care

Carol

--- aaclouti wrote:

> Perfect. I cant get a break. I just start getting

> excited about

> physical sunblocks and now even they " cause cancer " .

> I have seen no

> proof of this. The first post about this came from

> some strange

> website and now we have " i heard from so and so " .

> If you look hard

> enough on the internet you will find everything

> causes cancer. Does

> anyone know of any reall studies or evidence of Zinc

> Oxide causing

> cancer?

>

> Patty

>

> > >

> > > >

> http://www.mercola.com/2000/oct/15/sunscreen.htm

> > >

> > > This is pretty scary. I use sunscreen everyday

> in

> > > my neutrogena healthy

> > > defense moisturizer spf 30. Has anyone else

> out

> > > there ever heard of

> > > sunscreen being a carcinogen?

> > >

> > > [Non-text portions of this message have been

> > > removed]

> > >

> > > --

> > > Please read the list highlights before posting

> to

> > > the whole group

> (http://rosacea.ii.net/toc.html).

> > > Your post will be delayed if you don't give a

> > > meaningful subject or trim your reply text. You

> must

> > > change the subject when replying to a digest !

> > >

> > > See http://www.drnase.com for info on his

> recently

> > > published book.

> > >

> > > To leave the list send an email to

> > > rosacea-support-unsubscribe@y...

> > >

June 21, 2002

Patty,

I'm sorry you are upset because I responded to a

question with an answer that is less than positive.

To respond to your comment about " I heard from so and

so " ...not only was this addressed in my biochemistry

class, it is also cited on page 225 of my Anatomy and

Physiology textbook (entitled Anatomy and Physiology:

The Unity of Form and Function, written by S.

Saladin)...feel free to reference it yourself if you

like.

Anyway to elaborate...the book states that recent

studies have shown that people who use sunscreens have

a higher incidence of basal cell carcinoma than people

who do not, while data relating to malignant melanoma

to sunscreen use are still contradictory and

inconclusive. Some of the chemicals used in

sunscreens damage DNA and generate harmful free

radicals when exposed to UV (specifically PABA, which

has now been discontinued, zinc oxide, and titanium

dioxide).

Currently this is all the knowledge I have on the

subject, although I am sure there is more out there if

you are willing to do the searching for it. Take care

Carol

--- aaclouti wrote:

> Perfect. I cant get a break. I just start getting

> excited about

> physical sunblocks and now even they " cause cancer " .

> I have seen no

> proof of this. The first post about this came from

> some strange

> website and now we have " i heard from so and so " .

> If you look hard

> enough on the internet you will find everything

> causes cancer. Does

> anyone know of any reall studies or evidence of Zinc

> Oxide causing

> cancer?

>

> Patty

>

> > >

> > > >

> http://www.mercola.com/2000/oct/15/sunscreen.htm

> > >

> > > This is pretty scary. I use sunscreen everyday

> in

> > > my neutrogena healthy

> > > defense moisturizer spf 30. Has anyone else

> out

> > > there ever heard of

> > > sunscreen being a carcinogen?

> > >

> > > [Non-text portions of this message have been

> > > removed]

> > >

> > > --

> > > Please read the list highlights before posting

> to

> > > the whole group

> (http://rosacea.ii.net/toc.html).

> > > Your post will be delayed if you don't give a

> > > meaningful subject or trim your reply text. You

> must

> > > change the subject when replying to a digest !

> > >

> > > See http://www.drnase.com for info on his

> recently

> > > published book.

> > >

> > > To leave the list send an email to

> > > rosacea-support-unsubscribe@y...

> > >

June 21, 2002

Carol,

The textbook was probably written five or more years ago at which

time PABA, zinc oxide and titanium dioxide were shown to create free

radicals in the laboratory. But subsequent work over the past 5 years

found that most sun protection products create free radicals, and

attention turned to whether the sun protection product was absorbed

into the skin or not; free radicals on the surface may not mean much

compared to free radicals generated within skin cells. This is

usually regarded as theoretical or laboratory findings, but breakdown

products of some sunscreens do appear in the urine, so we know they

do get absorbed to some extent. Still, I'm not aware that anyone has

linked free radicals or breakdown products with any risk of danger.

So most scientists believe all sunscreens are safe, though some

believe that sunblockers like zinc oxide and titanium dioxide are

safer than sunscreens because the latter protect the skin

specifically by being absorbed into the skin. But there are

scientists who recommend no sunscreen or sunblock at all.

The issues regarding sun protection are complicated and frankly, I

don't know what to believe. For myself (fair-skinned) I think it's

reasonable to use sun protection, and something less likely to be

absorbed (like zinc oxide and titanium dioxide) are better for

rosacean skin anyway. I use Clinique City or Super City Block.

Marjorie

Marjorie Lazoff, MD

> > > >

> > > > >

> > http://www.mercola.com/2000/oct/15/sunscreen.htm

> > > >

> > > > This is pretty scary. I use sunscreen everyday

> > in

> > > > my neutrogena healthy

> > > > defense moisturizer spf 30. Has anyone else

> > out

> > > > there ever heard of

> > > > sunscreen being a carcinogen?

> > > >

> > > > [Non-text portions of this message have been

> > > > removed]

> > > >

> > > > --

> > > > Please read the list highlights before posting

> > to

> > > > the whole group

> > (http://rosacea.ii.net/toc.html).

> > > > Your post will be delayed if you don't give a

> > > > meaningful subject or trim your reply text. You

> > must

> > > > change the subject when replying to a digest !

> > > >

> > > > See http://www.drnase.com for info on his

> > recently

> > > > published book.

> > > >

> > > > To leave the list send an email to

> > > > rosacea-support-unsubscribe@y...

> > > >

June 21, 2002