The eye area
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Why the eye is treated separately
It is a mucous membrane with no barrier comparable to skin, and a colorant that is unremarkable on an arm is not automatically unremarkable there. The regulations treat it as its own use.
Which is why approvals name it
Mica is explicitly cleared "including cosmetics applied to the area of the eye". That phrase exists because for many additives the answer is the opposite, and the listing has to say which.
Your customer is making eyeshadow
A meaningful fraction of anybody buying mica is making colour cosmetics rather than soap. They will ask, and the correct answer is about the specific additive rather than about mica in general.
A blend is as restricted as its most restricted component
Most commercial micas are mica plus one or more other colorants. The approval that governs the blend is the intersection, not the mica, and that is the detail that gets lost.
So publish the full composition
Every colorant in the blend, by name. A customer cannot run the eye-area question on an ingredient you have described only as a colour name.
Say no clearly when it is no
A plain statement that a product is not approved for the eye area is useful, sells the ones that are, and protects the customer. It is also the kind of honesty that makes a supplier the default choice.
And do not let marketing photography answer it
A product shot of swatched eyeshadow is a statement about intended use, the same way it is in every other property in this library. The image makes the claim whether or not the text does.
This is the one to get right
Of everything on these pages, an incorrect eye-area statement is the one most likely to end up on somebody's face. It is worth the extra check every time a supplier changes.