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Moumoujus

HC YELLOW NO. 15.

Avoid CAS 138377-66-9 / HAIR DYEING

HC Yellow No. 15 is a synthetic organic compound primarily utilized as a hair colorant. It imparts a yellow hue by diffusing into the hair shaft, characteristic of its nitro dye classification.

Summary

Hair Dyeing Hair Colorant

Science

Mechanism of Action

HC Yellow No. 15 is identified solely for its role in hair coloration, functioning as a dye that penetrates the hair shaft due to its small molecular size. Its mechanism of action or any direct effects on skin physiology remain undefined in the available research.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH N/A
0 7 14

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

Specific safety data for HC Yellow No. 15 from the Cosmetic Ingredient Review (CIR) is currently unavailable, though related HC Yellow compounds have been assessed. Its regulatory status under the EC Cosmetics Regulation is not explicitly detailed. For hair dye applications, FDA guidelines permit use if specific cautionary labeling and patch test instructions are provided, yet comprehensive skin safety for topical application remains unconfirmed.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Given its exclusive function as a hair colorant, lack of any reported skin benefits or mechanism, and unreviewed safety profile by CIR for skin applications, HC Yellow No. 15 is unsuitable for precision skincare formulations.

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