N-N-N-Trimethyl Cyclohexyl Methyl Ammonium Hydroxide AQ Solution is a colorless, pungent-smelling mixture of ammonia and water. It is often found in concentrations of up to 30% and is utilized as a refrigerant as well as in-home cleansers, fertilizers, photography, textiles, rubber, and medicines. As it is non-irritating, it is safe in cosmetics under the current usage and concentration stated in the safety assessment. An antacid does not include ammonium hydroxide. However, it is also used to clean oil off of clothes and to produce fertilizers.