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CI 42510.

Avoid CAS 632-99-5 / COLORANT

CI 42510, commonly known as Basic Fuchsin, is a synthetic organic dye primarily valued for its intense violet coloration. While extensively used in industrial applications and biological staining, its role in cosmetic skincare is limited solely to imparting color.

Colorant

Science

In skincare formulations, CI 42510 functions exclusively as a pigment. It binds to various components within a product to provide a vibrant violet hue, offering no known biological activity or therapeutic benefits for the skin.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 5 – 6
0 7 14

Stability

A 1 g/L solution of CI 42510 in water exhibits a stable pH range of 5.0-6.0 at 25 °C. This ingredient also functions as a pH indicator, displaying a color transition from black violet to violet pink within the pH range of 1.0-3.1.


Safety

CIR Status
Not reviewed
Sensitization risk High

CI 42510 has not undergone a specific safety assessment by the Cosmetic Ingredient Review (CIR) or the Scientific Committee on Consumer Safety (SCCS) for use in cosmetic skincare products. Significant hazard warnings are associated with this ingredient, including suspected carcinogenicity (H351), skin irritation (H315), serious eye irritation (H319), and potential for respiratory irritation (H335). It is also noted to possess allergenic, mutagenic, and reprotoxic effects. Specific FDA approved uses or maximum concentration limits for CI 42510 in cosmetic skincare are not readily available in the provided data.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Avoid

Due to extensive and severe hazard warnings, including suspected carcinogenicity, skin irritation, and potential reproductive toxicity, CI 42510 is deemed unsuitable and strongly advised against for use in precision skincare formulations.


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