Science
Mechanism of Action
This ingredient functions exclusively as a surface colorant. It imparts a fluorescent yellow hue by physically adhering to materials like hair or other substrates, with no known biochemical mechanism or active interaction with skin tissue.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
As a colorant with no reported active skin functions, the concept of 'dusting' related to efficacy thresholds does not apply to Solvent Yellow 172.
The Formula
Formulation
Stability
Solvent Yellow 172 exhibits robust stability across a wide pH range and demonstrates good thermal stability, tolerating temperatures exceeding 350°C. It also maintains good lightfastness and resistance to migration.
Safety
Safety Profile
Solvent Yellow 172 lacks a specific review by the Cosmetic Ingredient Review (CIR) and the Scientific Committee on Consumer Safety (SCCS) has not issued an opinion. It is not listed as an approved color additive for cosmetic use by the FDA in the United States. Notably, some suppliers explicitly state that products containing Solvent Yellow 172 are not intended for cosmetic use, raising significant safety considerations for dermal application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to the absence of regulatory approval for cosmetic use, explicit supplier warnings against dermal application, and a critical lack of skin-specific safety data, Solvent Yellow 172 is considered unsuitable for precision skincare formulations.
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