Hi, firstly - is this forum still active? Seems a while since the last post that's all...

I recently saw an ad for Sheer Cover makeup and was intrigued and I am considering buying some. I don't wear a lot of makeup, usually I put on a loose powder just to cover any shine I might get through the day, and a bit of blush- that's all I wear. The sheer cover makeup interests me cos I would like a powder makeup that actually does something (mine doesn't do a lot) but still looks natural and is easier to apply than liquid because I am NOT going to bother wearing a liquid foundation all the time.

The problem is, my Mum was telling me about "nano-particles" and the health concerns related to them. I have looked at the sheer cover website and can't see anything saying whether they do or don't use nano-particles. Does anyone know? Also, the ingredients listed on the powder foundation are;
Zinc Oxide (12.00%), Boron Nitride, Bisabolol, Aspalathus Linearis Leaf Extract, May Contain (+/-): Bismuth Oxychloride (CI 77163), Titanium Dioxide (CI 77891), Mica, Iron Oxides (CI 77491, CI 77492, CI 77499).

I really don't know what I'm looking at here- so does anyone know if any of the above is bad? I have been trying to research this for several hours online now and I'm at a loss! I found an article at vivawomen.net talking about titanium dioxide and how it can be a strong health risk when in nano-particle form. However the article didn't say whether titanium dioxide is safe if it ISNT in nano-particle form...

I've also (through all of the research) found another brand of mineral makeup called Jade mineral makeup (an Aussie brand). On their website they specifically say that they don't use nano-particles. They also say that they don't use bismuth oxycloride which i notice is listed in the sheer cover ingredients- does anyone know about this ingredient and why it could be bad? All in all, Jade looks good (and is Aussie - I'd like to support a home-grown brand) however I checked out the ingredients they use and we have;

mica, titanium dioxide, zinc oxide, iron oxide, kaolin, ultramarine, tin oxide

so there it is again- titanium dioxide. However at least with jade I know that it is not in nano-particle form, but is it still safe? Also I noticed one vague reference on another page about mica not being particularly good? I can't find anything on this- as far as I knew Mica was this new fantastic thing and was great?

Hoping you can all give me wonderful advice and I can happily buy myself a new powder foundation! Oh incidentally- anyone tried Jade? is it good?