80mg per serving — the one individually disclosed dose on the label
The only individually dosed ingredient on the label, at 19% of the daily value.
Magnesium Glycinate is the one line on Lungora's label with its own printed number: 80mg, listed at 19% of the daily value for magnesium.
Magnesium is an essential mineral involved in hundreds of bodily processes, and glycinate is a well-absorbed, generally gentle-on-the-stomach form commonly used in supplements.
The label notes this 80mg is sourced "from proprietary blend," meaning it's part of the same 575mg total as the other five ingredients — magnesium is simply the one component with an established Daily Value that labeling rules require to be broken out individually.