Leonie explained she used a paper towel to apply the mixture then used her fingers to rub it in further.
After a generous scrub, she rubbed it off and found the headlights looked brand new.
Headlights often become foggy over time if they are made from plastic.
Toothpaste contains a mild abrasive that buffs out most surfaces for a smooth and clean feel.
After sharing the hack online, she was flooded with messages with hundreds saying how impressed they are with the end result.
"Wow I need to do this on my Mini one is really bad, I might give this a go tomorrow," one woman said.
"Magic erasers work wonderfully too - my car detailer uses them and my car headlights come up brand new,'" another said.
A third said: "I've done in past it works well but doesn't last very long."
"Good to know, we always just buy new light covers," another woman said.
