SN in a plastic container. Is it still ok?

[shame]

I opened my sealed bottle about 5 months ago to test. Then I closed it tightly. Should it be still ok?

 

[Sbetto]

If you have resealed and stored it properly, and it hasn't been exposed to humidity or heat, the product should still be good. However, it depends on how long you've had it. If you have any doubts, I recommend testing it with blood or, for more accuracy, using aquarium test strips.

 

[shame]

If you have resealed and stored it properly, and it hasn't been exposed to humidity or heat, the product should still be good. However, it depends on how long you've had it. If you have any doubts, I recommend testing it with blood or, for more accuracy, using aquarium test strips.

I just closed the bottle tightly, it's not sealed. Honestly I'm too tired to test it one more time. I think I'll just take a risk. Aww..