CI 77288 is a cosmetic colorant that imparts a pretty green color to beauty products. It is often used along with CI 77891 (titanium dioxide white) to form different hues of green. CI 77288 is the INCI name of Chromium Oxide Green and is also known by its other name - Pigment Green 17. In its raw form, this colorant appears as a forest green powder. Although safe for use in small quantities, Chromium Oxide Green is prohibited from use in lip products as it can cause side effects on sensitive areas. The chemical formula of CI 77288 is Cr2O3.
CAS Number: 1308-38-9Chem/IUPAC Name: Dichromium trioxide; Chromic Oxide; Chromium (III) oxideEINECS/ELINCS No: 215-160-9COSING REF No: 32823Products with CI 77288
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What is CI 77288 used for?
CI 77288 is extensively used in the cosmetic industry for its stable and vibrant green color. It is commonly found in a variety of products including eyeshadows, eyeliners, and nail polishes. Due to its non-reactive nature and resistance to fading, it is ideal for long-lasting makeup formulations. Additionally, CI 77288 is used in some skincare products to color-correct redness and even skin tone. Its safety and stability make it a preferred pigment for high-quality, visually appealing cosmetic products, enhancing both their aesthetic and functional attributes.
Origin
Chromium Oxide Green occurs naturally as the mineral eskolaite. However, for industrial purposes, CI 77288 undergoes synthetic production to maintain purity and consistency. This process involves heating sodium dichromate and sulfur in a furnace, resulting in a chemical reaction that produces chromium oxide and releases sulfur dioxide gas. The chromium oxide is then collected, washed, and finely ground to produce the green pigment.
What does CI 77288 do in a formulation?
COSMETIC COLORANT
Safety Profile
CI 77288 (chromium oxide green) is generally considered safe for use in cosmetics by regulatory agencies like the FDA and the European Commission. It is non-toxic and non-irritating when used in approved concentrations. However, it should not be used in lip products as it can cause severe allergies and irritation. Patch testing is recommended for sensitive skin. Further, CI 77288 can be persistent and accumulate in the environment causing negative impacts.
CI 77288 alternatives
CI 77288 technical profile
| Property | Values |
| pH | 7 |
| Solubility | Insoluble in water |
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Decorative Cosmetics: Goodbye Redness CC Serum by Elementis
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