Science
Mechanism of Action
Fluorescent Brightener 236, an optical brightener, operates by absorbing electromagnetic radiation in the ultraviolet and violet regions. This absorbed energy is subsequently re-emitted as blue light. This blue emission effectively counteracts and visually neutralizes any yellowish tones present on the skin's surface, leading to an appearance of increased brightness and whiteness.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 US Patent US6313181B1
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient exhibits robust pH and acid-base stability. It demonstrates solubility in hot organic solvents, while its water solubility is notably low, estimated at 0.006883 mg/L at 25 °C.
Safety
Safety Profile
Fluorescent Brightener 236, identified chemically as 2H-1-Benzopyran-2-one, 7-(2H-naphtho[1,2-d]triazol-2-yl)-3-phenyl-, is reported not to meet GHS hazard criteria. It holds FDA Food Contact Substance (FCS) status, permitting its use in certain polymers and paperboard contacting food. However, specific safety assessments by the Cosmetic Ingredient Review (CIR) or the Scientific Committee on Consumer Safety (SCCS) for cosmetic applications are not available. The indicated maximum concentration of 5% is derived from general usage ranges for optical brighteners in cosmetic patents.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering immediate optical brightening effects, comprehensive safety data specifically for cosmetic application is currently insufficient to determine its full suitability for precision skincare.
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