How much is 20mL for Listerine?

It states on my Listerine bottle to rinse 20mL for 30 seconds. I fill 80% of it in the cap. Is that enough? Or should I fill the whole cap, or a seperate cup?

2 answers by real people - How much is 20mL for Listerine?

  • 1 month ago

    *shrugs* Do you really need to measure…? I usually just rinse with half or a little less than half a cap, and I am cavity and dental problems-free.

    Just do whatever works for you. If you feel the burn, then you’re good.

  • R.M. 61
    1 month ago

    one capful is enough!

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