Luminescent Zinc Sulfide

What Is It?

Luminescent Zinc Sulfide is a colorant. It is zinc sulfide containing a copper additive.

Why Is It Used?

Luminescent Zinc Sulfide imparts a color to cosmetics and personal care products.

Scientific Facts

Luminescent Zinc Sulfide is obtained from zinc. When exposed to sun or artificial light, Luminescent Zinc Sulfide produces a yellow-green phosphorescence.

Safety Information

The Food and Drug Administration (FDA) lists Luminescent Zinc Sulfide as a color additive exempt from certification. It may be safely used for coloring externally applied facial makeup preparations and nail polish that are intended for use only on limited, infrequent occasions (such as makeup used on Halloween), and not for regular or daily use. The Luminescent Zinc Sulfide used in cosmetic products must conform to FDA specificatons. Cosmetic Ingredient Review (CIR) has deferred evaluation of this ingredient because the safety has been assessed by FDA. This deferral of review is according to the provisions of the CIR Procedures.

All color additives used in foods, drugs and cosmetics in the United States must be approved by FDA and listed in the Code of Federal Regulations. In some cases, FDA requires that each batch of color produced for use in regulated products can be used only if it is certified by the agency to meet strict specifications. FDA maintains a laboratory especially for this purpose and color manufacturers must pay a fee to support this activity. FDA only approves colors after extensive review of all safety data and publication of the basis for its approval in the Federal Register.

You can find out more about FDA regulation of colors at:

Link to FDA Code of Federal Regulations for Luminescent Zinc Sulfide…

Luminescent Zinc Sulfide is not an approved colorant in the European Union.

Link to the EU Cosmetic Regulation:…

You can learn more about the regulation and labeling of colors at:…

More Scientific Information

Luminescent Zinc Sulfide is zinc sulfide containing a copper activator. In cosmetics and personal care products, Luminescent Zinc Sulfide functions as a colorant, and is permitted for use only in products intended for occasional use.