Science
Mechanism of Action
Its alkaline nature allows it to neutralize acidic formulations, ensuring product stability and efficacy. In specific applications, it may also help soothe insect bites by neutralizing acidic irritants.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Diluted ammonium solution at 3.6% was effective in relieving itching and symptoms caused by Aedes aegypti mosquito bites (Zhai et al., cited in MDPI 2025).
- 02 Identified as the highest maximum use concentration of 0.73% for leave-on products like hair tonics and grooming aids (CIR Expert Panel 2017/2018).
- 03 Highest concentration of 1.5% reported for non-spray face and neck products, used for pH adjustment (CIR Expert Panel 2017/2018).
Transparency
Dusting Analysis
Ammonia is a volatile compound, typically handled as a solution, and does not commonly present as a dry powder ingredient susceptible to dusting issues.
The Formula
Formulation
Stability
Highly volatile, leading to potential pH shifts over time as it evaporates. Its volatility increases significantly at higher pH levels.
Conflicts
- Bleach (Sodium Hypochlorite) - forms toxic chloramine gas
- Strong acids
- Copper and zinc (corrosive)
Safety
Safety Profile
Considered safe within current use practices and concentrations, provided formulations are non-irritating. EU regulations restrict it to 6% as NH3.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ammonia is a valuable formulation aid primarily for pH adjustment, deemed safe when used within recommended concentrations and properly formulated.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources