Science
Mechanism of Action
It functions by disrupting the cell membranes of microbes, effectively inhibiting the proliferation of bacteria, fungi, and yeast. Additionally, its molecular structure allows it to reduce the viscosity of formulations and stabilize fragrance components by masking base odors.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 Clinical evaluation at 10% concentration demonstrates it is non-sensitizing, though local irritation is possible at such elevated levels (CIR 2001).
- 02 Trials at 5% concentration showed potential for non-immunologic contact urticaria (erythema and pruritus) in sensitive subjects.
- 03 FDA-approved studies confirm safety for topical use in pediatric populations as young as 6 months for specific therapeutic applications.
Transparency
Dusting Analysis
As a preservative, it is functional even at very low concentrations. However, when used as a fragrance component, it must be declared if it exceeds 0.001% in leave-on products due to EU allergen regulations.
The Formula
Formulation
Stability
Antimicrobial performance is highest below pH 5.5; efficacy drops significantly as pH approaches 8.0. It is prone to slow oxidation into benzaldehyde and benzoic acid when exposed to air.
Synergies
- UV filters
- Salicylic acid
Conflicts
- Polysorbate 80
- Nonionic surfactants
- Strong oxidizing agents
- Polyethylene packaging
- Methylcellulose
Safety
Safety Profile
Legally capped at 1.0% in the EU for preservative use. It is listed as one of the 26 regulated fragrance allergens, requiring specific labeling for transparency.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A fundamental preservative and solvent that ensures formula safety and active ingredient stability within precise pH parameters.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources