Fluorenone
INCI: FLUORENONE
Reviewed by Rosie · Last updated 6 May 2026
A polycyclic aromatic hydrocarbon with limited established skincare applications
What Is Fluorenone?
Fluorenone is an organic compound classified as a polycyclic aromatic hydrocarbon (PAH). It occurs naturally in some environments and can be found as a trace component in certain industrial processes and materials.
In skincare, fluorenone does not have a well-established cosmetic function or mechanism of action. It is not commonly used as an active ingredient in skincare formulations, and information about its intentional use in cosmetic products remains limited.
How It Works
The mechanism of action for fluorenone in skincare applications has not been clearly defined in available research. Without established clinical evidence demonstrating efficacy in cosmetic contexts, its mode of operation remains unclear.
Clinical Evidence & References
There is insufficient published evidence to support the use of fluorenone as a skincare ingredient. No peer-reviewed studies appear to document its efficacy for skin concerns or benefits.
How to Use
As fluorenone is not an established skincare ingredient, specific usage guidance is not available. If present in a formulation, follow the product instructions provided by the manufacturer.
Safety & Precautions
Frequently Asked Questions
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