Why we don't use micas
While micas do occur naturally in the earth, the levels of toxic metals are so high they are not safe for use!
Some mica colorants begin with naturally mined mica, but the beautiful colors you see in cosmetics and soaps are created by coating the mica with oxide colorants or FD&C lab colors.
Many micas have been deemed unsafe for use in cosmetics. However, since the FDA does not consider soap a cosmetic, soap makers are free to use these micas to color soap.
Due to high levels of toxic contaminants such as arsenic, mercury, lead and selenium found in naturally occurring iron oxides, (browns, blacks, reds, etc.), ultramarines, chromium oxide green, and a variety of whites such as titanium dioxide., the iron oxides used in cosmetics and soap have been manufactured in labs since the 1970’s. The purpose of this was to make these colors safer by manufacturing a product with fewer toxins. As a result, iron oxides may contain fewer toxins, but they are certainly not natural.
What’s more, manufacturing these oxides in a lab does not eliminate the toxins, it merely reduces the toxins to an amount deemed “safe” by the FDA. * The FDA considers the following amount of toxins safe:
· Arsenic (as As), not more than 3 parts per million.
· Lead (as Pb), not more than 10 parts per million.
· Mercury (as Hg), not more than 3 parts per million
Some iron oxides may still be mined naturally, but they are often high in toxic metals and are NOT approved for cosmetic use in the United States. ONLY SYNTHETIC IRON OXIDES ARE APPROVED FOR COSMETIC USE IN THE UNITED STATES.