Science
Mechanism of Action
It functions by infiltrating the cellular structures of pathogens, specifically disrupting mitochondrial activity and membrane transport. By interfering with the metabolic pathways and nucleic acid synthesis of bacteria, molds, and yeasts, it prevents microbial proliferation within the formula.
Research
Clinical Evidence
High confidence0.4%
Key findings
- 01 The CIR Expert Panel (2019) reaffirmed safety for individual parabens at concentrations up to 0.4% in finished products.
- 02 SCCS guidelines (SCCS/1348/10) support a cumulative limit of 0.8% when multiple paraben salts are utilized in a single formulation.
Transparency
Dusting Analysis
As a preservative, this ingredient is used at functional levels to ensure safety; it is rarely 'dusted' for marketing purposes because its role is purely structural rather than a primary active for skin benefits.
The Formula
Formulation
Stability
Highly resilient to thermal degradation, making it suitable for processes involving high-heat sterilization. It should be integrated into the aqueous phase.
Synergies
- Other paraben salts
- Chelating agents
Conflicts
- Non-ionic surfactants (Polysorbate 80)
- Lecithin
- Cationic surfactants
- Saponins
- Iron salts
Safety
Safety Profile
While generally safe, it belongs to a class of ingredients frequently scrutinized for potential endocrine interference, though current regulatory data confirms its safety in topical applications at established thresholds.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A reliable and stable preservative that ensures the safety of complex aqueous formulas without compromising skin barrier integrity.
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References
Sources