Salah's push to retain the Golden Boot was boosted as he moved ahead in the standings, taking his league tally to 21, with Mane trailing by just one.
Henderson told Liverpoolfc.com: "It's amazing. The work-rate as well, which people don't look at as much [because] they want to look at the goals.
"They work hard for the team and when they get in front of goal they're clinical. That's the most important thing.
“They keep getting in the right areas and if we keep feeding them then they'll score goals for fun."