Determined to drill this one down: Natural Products as Color Additives
The FDA strictly regulates color additives and their approved uses in cosmetics. Per the FDA, the definition of a color additive is a follows (source: Sec 201)
(t)(1) The term "color additive" means a material which—
(A) is a dye, pigment, or other substance made by a process of synthesis or similar artifice, or extracted, isolated, or otherwise derived, with or without intermediate or final change of identity, from a vegetable, animal, mineral, or other source, and
(B) when added or applied to a food, drug, or cosmetic, or to the human body or any part thereof, is capable (alone or through reaction with other substance) of imparting color thereto; except that such term does not include any material which the Secretary, by regulation, determines is used (or intended to be used) solely for a purpose or purposes other than coloring.
So, if one included a botanical which is used for a purpose other than coloring, that would be OK.
Recently I contact a vendor of natural products which they market heavily for use in coloring cosmetics. I asked them to explain how this was possible. Here is the response:
"These are not classified as colorants – only color enhancing extracts"
Well, I'll keep you posted. I'm still in conversation with the vendor and I'll also put in a call to the FDA.