Science
Mechanism of Action
Functions by slowly releasing formaldehyde, which disrupts microbial cell functions. This ensures product integrity and safety over time.
Research
Clinical Evidence
High confidence0.2%
Key findings
- 01 Optimal preservative efficacy against bacteria, yeast, and mold achieved at 0.1-0.3%.
- 02 Antimicrobial activity demonstrated at 0.3% against P. aeruginosa, S. marcescens, and S. epidermidis.
- 03 A 1990 study indicated mild cumulative skin irritation up to 0.4%.
Transparency
Dusting Analysis
While effective at low concentrations, exceeding 0.4% can cause mild skin irritation. The maximum authorized 0.5% showed in vitro erythrocyte toxicity, indicating potential risks with overuse.
The Formula
Formulation
Stability
Highly stable across a wide pH range (0.3-9.0) and temperatures up to 100°C. Best incorporated into the water phase during cool-down below 60°C for maximal efficacy.
Conflicts
- Oxidizing agents
- Other formaldehyde-releasing agents
- Ingredients that form nitrosamines (above 10°C)
Safety
Safety Profile
CIR and SCCS deem it safe below 0.5% due to low formaldehyde release. However, it's a known formaldehyde-releasing preservative and can cause skin sensitivities like irritation and redness in susceptible individuals.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly effective broad-spectrum preservative essential for product stability and microbial safety when used within strict concentration limits, though potential for sensitivity exists.
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