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HC BLUE NO. 14.

Optional CAS 99788-75-7 / HAIR DYEING

HC Blue No. 14 is a synthetic direct dye primarily utilized to impart a blue hue. It functions by adhering to the surface of hair or skin, providing aesthetic coloration without biochemical interaction.

Summary

colorant

Science

Mechanism of Action

HC Blue No. 14 operates as a direct colorant, physically attaching to surfaces like hair or skin to provide a temporary blue tint. Its action is limited to external staining, with no known direct biochemical interaction or mechanism within the skin itself.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.3%
Sensitization risk Low

The Scientific Committee on Consumer Safety (SCCS) considers HC Blue No. 14 safe for use in non-oxidative hair dye formulations, with an on-head concentration of maximum 0.3%. It is listed in Annex III of the EC Cosmetics Regulation as a restricted substance. Dermal toxicity studies have reported no toxic effects, with only slight blue coloration observed. It is generally approved for use in cosmetics by regulatory agencies such as the US FDA and the EU.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

HC Blue No. 14 is a safe and approved direct colorant for cosmetic use, primarily adding a blue pigment without active skin benefits.

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