Science
Mechanism of Action
Penetrates microbial cell membranes through its lipophilic alkyl chain, disrupting membrane transport processes and energy metabolism, ultimately causing cell death through leakage of essential intracellular components.
Research
Clinical Evidence
High confidence0.02%
Key findings
- 01 Demonstrated minimum inhibitory concentrations of 0.0125-0.02% against Candida albicans and Staphylococcus aureus
- 02 SCCS safety assessment confirmed efficacy and safety at maximum 0.14% concentration for adults
Transparency
Dusting Analysis
As a preservative ingredient with established safety limits and regulatory approval, butylparaben is not typically subject to dusting practices
The Formula
Formulation
Stability
Exceptionally stable across pH 3.0-8.0 with optimal performance at pH 3-6. Resistant to heat sterilization and hydrolysis. Water solubility limited to 0.2 g/L but freely soluble in alcohols and oils.
Synergies
- Other parabens for broad-spectrum preservation
- Oil-based carrier systems
- Alcohol-based formulations
Conflicts
- Non-ionic surfactants (Polysorbate 80)
- Highly ethoxylated compounds
- Cellulose derivatives
- Proteins
- Lecithin
- Bentonite and clay minerals
Safety
Safety Profile
EU limits individual use to 0.14% and total paraben combinations to 0.8%. Recent SCCS guidance recommends 0.028% maximum for children's products due to aggregate exposure concerns.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A reliable preservative with proven antimicrobial efficacy at low concentrations, suitable for most skin types except sensitive skin.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources