Reg glitter vs body glitter?

So this may be a silly question but I recently came upon some very fine non toxic glitter, and when I compared it to a body glitter that I have it was practically the same thing. So my question is what is the difference between glitter and glitter thats marketed for the body?

Thanks, Ruth

This is just cut and pasted from the draft text of my book - Gary Cole inserted this bit in (he edited the book)

If using glitter be sure that it is cosmetic grade glitter which is made from polyester; never use metallic craft glitters as they could cause serious eye damage. Craft glitters are poly coated dyes rather than poly coated (and sealed) cosmetic grade pigments. Avoid craft glitters on the skin. As a general rule, keep all poly glitters above the eyebrow and below the cheek bone on the face.

good info thank you