HC Blue No. 16 is a synthetic organic compound used as a direct hair dye. It imparts a blue color to the hair without requiring an oxidative process. This ingredient is typically found in semi-permanent and temporary hair coloring products.
NoneHair dyeVeganEvidence: Medium
BenefitNone 0 / 4
RiskModerate 1.5 / 4
Sensitization
Irritation
Rated by SpottyLabs' ingredient methodology, independent of brands.
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May cause skin irritation or allergic reactions in sensitive individuals
Can stain skin and other surfaces if not handled carefully
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HC Blue No. 16 is a direct hair dye, meaning it deposits color directly onto the hair shaft without needing to be mixed with a developer or oxidizing agent.
Is HC Blue No. 16 permanent?
No, HC Blue No. 16 is typically used in semi-permanent or temporary hair color formulations, which means the color will gradually fade with shampooing.