I read on this forum it is best not to seal but allow urine to breath in storage?

Cloudy urine is nothing to worry about, they form due to protein in your diet.

For topical applications, it's best to use aged urine. I have 1 bottle at 2 years old or so. Never apply them straight, they could be corrosive due to the high concentration.

Store urine using jars/bottles with a fine sieve/cloth. This promotes gas exchange as the urea matures.

Another method is to dry the urine under the sun till 90% of water in the urine evaporates, leaving a shiny sheen of oil. Another way is to boil the urine, strongly recommended to do it outdoors. The smell takes days to clear if boiled indoor.

The steam from boiling urine is recommended to those with respiratory/lung diseases. I guess it'd be good for the face too. Cover the kettle/pot with a layer of cloth to filter the hot steam, or just stand high above the pot, this avoid burning/scalding from the hot vapors. Inhale the steam daily to heal the lungs.

Urine enemas is rocket fuel for clearing Acne and detox. It's the best choice.

Aged urine is more for maintenance of the skin.

Maurice