Description

Cupric Oxide, also known as copper(II) oxide, is a black or dark brown inorganic compound with the chemical formula CuO. It is commonly used in various industrial, cosmetic, and personal care applications due to its distinctive properties.

Chemical Composition and Structure
Cupric Oxide is composed of copper in its +2 oxidation state and oxygen. It has a monoclinic crystal structure and is insoluble in water but soluble in mineral acids.

Molecular Formula: CuO
Key Functional Groups: Copper ion (Cu^2+) and oxide ion (O^2-)
Physical Properties
Cupric Oxide typically appears as a black or dark brown powder. It has a high melting point of 1,326°C (2,419°F) and is known for its stability and conductivity properties.

Cosmetic and Personal Care Applications
Pigmentation: Cupric Oxide is used as a pigment in various cosmetic products to provide a rich, dark color. It is often found in eye makeup, such as eyeshadows and eyeliners.

Antimicrobial Properties: Due to its antimicrobial properties, Cupric Oxide is used in certain skincare products to help reduce the presence of bacteria on the skin.

Hair Care: It can be used in hair dye formulations to achieve certain shades of color, particularly dark tones.

UV Protection: Cupric Oxide can be included in sunscreens and other skincare products for its potential UV-absorbing properties, although this application is less common compared to other compounds.

Environmental and Safety Considerations

Cupric Oxide is generally considered safe for use in cosmetic and personal care products when used within recommended concentrations. It is important to follow regulatory guidelines and safety assessments to ensure consumer safety. However, like all copper compounds, Cupric Oxide should be handled with care to avoid inhalation or prolonged skin contact, which can cause irritation.

Cosmetics - INCI Functions


Antimicrobial agent. This ingredient is able to suppress or inhibit the growth and replication of a broad spectrum of microorganisms such as bacteria, fungi and viruses by making the stratum corneum temporarily bactericidal and fungicidal.
Synonyms:

CAS: 1317-38-0