It's Listerine mouthwash.

It is the famous Listerine Cool Mint mouthwash.

It is a bit spicy, but I’ve gotten used to it, so I use it every day after brushing my teeth.

I use this product often, so I buy a large size and keep it on hand.

It feels refreshing and invigorating to gargle when I wake up in the morning.

It is a product that can be used immediately after brushing your teeth, and it comes in a mild flavor, so you can choose whichever you prefer.