Blue 1 is a certified water-soluble cosmetic color used in cosmetic products such as creams, lotions, gels, hair products, bath products, and soaps to produce a greenish blue. Small quantities are used in formulations since it is very concentrated.
Pigments
All those involved in international trade in cosmetics must have initially welcomed the U.S. FDA approach to harmonizing color nomenclature. It was proposed that the prefix FD&C or D&C be dropped and that colors would be named by their simple name with the color index (C.I.) number in parenthesis. For example, FD&C Blue No.1 becomes Blue 1 for the North American market and remains CI 42090 on the European ingredient listing.
However, for products sold on both continents, the FDA is prepared to accept Blue 1 (CI 42090). Unfortunately, certain European countries cannot take this compromise, so dual labeling remains a problem. In the USA, it is correct to name the colors by their shade and number only, but they must still conform to the FD&C or D&C specifications and be certified.
In line with Europe, there is no longer a requirement to name the metallic salt for lakes in the USA. It should be noted that there is no international list of approved colors and specifications, and differences between Europe, the USA, and Japan are still to be resolved.
Chlorophyllin-Copper Complex is a chlorophyll derivative in which Mg2+ cations in the middle of the nitrogen ring (reactive core) are replaced with copper ions, Cu2+.
Green 5 is a certified water-soluble cosmetic color used in cosmetic products such as creams, lotions, gels, hair products, bath products, and soaps to produce a bluish green. Small quantities are required since it is very concentrated.
Melanin originates from squid and is a dark pigment also produced by the human epidermis under the influence of UV light.
Sicopearl® Fantastico Gold is a color-variable pigment complex based on multiple-coated aluminum flakes, a colorant for cosmetic formulations. It is a powder with a changing color effect.
Sicopearl® Fantastico Green is a color variable pigment complex based on multiple-coated iron oxide flakes in the form of powder. Color changing from green to reddish violet.
Metallic silver (Argentum metallicum) is a natural antimicrobial active and appears as a silver-grey homogenous powder, without odor. It can be marked with Color Index nomenclature as a pigment or colorant CI 77820.
Titanium dioxide is sometimes described as a “natural sunscreen” because it is derived from a naturally-occurring mineral.