Science
Mechanism of Action
This ingredient functions as a skin and hair conditioning agent, leveraging its volatile nature and notably low surface tension to achieve superior spreading qualities on surfaces. Upon application, it forms a protective, vapor-permeable film, which contributes to a smooth, non-greasy skin feel and improved product aesthetics.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Similar to other cyclic siloxanes such as Cyclopentasiloxane, Trifluoropropyl Cyclotetrasiloxane is anticipated to demonstrate good stability, exhibiting minimal reactivity in both acidic and aqueous formulations.
Safety
Safety Profile
Trifluoropropyl Cyclotetrasiloxane has not undergone a specific safety review by the Cosmetic Ingredient Review (CIR) Expert Panel. While the CIR Panel has deemed certain general cyclic siloxanes (specifically those with n=4-7 members, including D4) safe for cosmetic use, citing minimal percutaneous absorption and low irritation/sensitization potential, this assessment does not directly apply to this fluorinated derivative. The ingredient is classified by the FDA as an intentionally added Per- and Polyfluoroalkyl Substance (PFAS) or 'forever chemical'. PFAS compounds raise significant concerns due to their environmental persistence, potential for bioaccumulation, and observed links to various adverse health outcomes, including endocrine disruption, reproductive issues, and cancer. The FDA has highlighted substantial data gaps regarding its typical use levels in cosmetics, dermal and oral absorption rates, and comprehensive mechanistic and dermal toxicity information. For a structurally similar compound, 'Cyclotetrasiloxane, 2,4,6,8-tetramethyl-2,4,6,8-tetrakis(3,3,3-trifluoropropyl)-', GHS classification data indicate a risk of skin irritation (H315) and serious eye irritation (H319) in 11.8% of reports. It is important to note that EU restrictions on Octamethylcyclotetrasiloxane (D4) and Decamethylcyclopentasiloxane (D5) are specific to those compounds and do not explicitly extend to Trifluoropropyl Cyclotetrasiloxane.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its functional benefits in texture and feel, the classification as an intentionally added PFAS, coupled with significant data gaps and potential health and environmental concerns, warrants its avoidance in Moumoujus formulations.
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