Ultramarine blue, green oxide, and aluminum are not approved for lips. Because they are not approved for lips, they are also not approved for bath bomb use. read more here.
Cosmetic micas may be used in body butters and lotions. The only colors we carry that cannot be used in lotions are marked "For Soap Only."
All of our bath bomb dyes and lakes are batch certified by the FDA.
General use rate for micas is 1 tsp. per pound of oils.
Avoid using green or yellow oils when using color. Colored oils will affect the outcome of the color used.
If using olive in a recipe you intend to color, Refined Olive Oil is best. This type of olive oil is less green or yellow and will not affect color.