nano.org : general
View general threads by...
Feed of this discussionNanoparticle cosmetics available (e.g. C60 cream) - Too soon?
Created by: Simon Benjamin on 22 November 2006, 18:15
Summary: Is it to soon for these products to be on sale?
Simon Benjamin
posted
18:15
22/11/06
View only replies to this postOpening comments
You can now buy face cream with C60 "buckballs" as the active ingredient. Is that safe? Is it simply an example of nanotech being a label to be exploited in advertising, 'bamboozling' the public?
Simon Benjamin
posted
18:58
22/11/06
View only replies to this postAn example
An example of such a product is Zelens Day Cream, which you can read about at the www.zelens.com site.



To quote verbatim from their site,

Zelens creams uniquely contain Fullerene C60, an extremely powerful anti-oxidant, for which its three discovers received the Nobel Prize for Chemistry in 1997

The Fullerene C60 in Zelens creams is 100 times more effective than the same concentration of Vitamin E in neutralising the harmful "free radicals" which cause premature aging of the skin
Looks like the price is varies from about £135 / 30ml to £95 / 15ml depending on the cream type - but the concentration of C60 is not specified.

There is an excellent short article on this whole issue at this URL:

http://pubs.acs.org/cen/science/84/8413sci3.html

the author quotes Robert F. Curl Jr., one of the Nobel prize winners to whom the Zelens site refers (!), as saying

I would take the conservative path of avoiding using such cosmetics while withholding judgment on the actual merits or demerits of their use.
Is it perhaps appropriate for cosmetics that include nanoparticles to be withheld from sale until the scientific community reaches some consensus that they are reasonably safe?
John Morton
posted
10:58
23/11/06
View only replies to this postre: An example
Simon Benjamin wrote (18:58 22/11/06): Looks like the price varies from about £135 / 30ml to £95 / 15ml depending on the cream type - but the concentration of C60 is not specified.
It is surprising that they can get away without specifying C60 concentration. As I understand, the regulations regarding cosmetics are much looser than those for food or pharmaceutical products, even though a large number of substances can cause harm when absorbed through the skin.
Pieter Kok
posted
16:57
27/11/06
View only replies to this postanti-oxidants
I thought that anti-oxidants have been discredited as a health benefit recently.
Ilya Kuprov
posted
17:39
29/03/07
View only replies to this postCarcinogenic?
I would expect many nanomaterials (e.g. TiO2 and certainly the polyaromatic systems such as C60) to be potent carcinogens.
 (all posts shown)
5 posts