Decorating Chocolates

I really enjoy using luster dust to decorate my chocolates as do many chocolatiers. While what I have been using has been noted as non-toxic and not a food ingredient, I do not know how much or to what extent I can safely use it. I am aware that FDA approved luster dust is available and would like to know who uses it exclusively or any other feedback.Thank you.
updated by @chocolate-lady: 04/23/15 11:46:40AM

I use it occationally on the top and have never had any problems.

I only use EDIBLE luster dust. If it's not clearly marked edible I prefer not to use it.

Thanks everyone for the feedback valuable information. It happens that Crystal Colors is one that I am ordering to work with and may decide to use exclusively if I like.

I don't wear contacts, but if I did I'd be willing to try it out. I wish they had more pics of other colors.

Chef Rubber might have a kosher-certified luster dust that is FDA approved. One way to apply is to mix with melted cocoa butter and decorating the insides of the molds.

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clay - http://www.thechocolatelife.com/clay/

The stuff I get from QZINA is certified Kosher--blessed by Rabbi Schlessinger himself.

I'd still love to know what is in that stuff..........