Before that, Jen would ''religiously'' apply jet black liquid eyeliner on the bottom waterline - a key step in her routine for the past five years.
The video, which has been viewed close to a whopping 750k times in just two weeks, sees Jen sharing what she looked like before the makeover - and after giving up the black eyeliner.
But after years of sporting the same eye make-up look, one woman shaved years off her face by ditching one popular step - and people can't believe the difference.
But although getting used to the more natural look was by no means easy - with Jen bravely admitting she wasn't sure whether she'd even make it past an hour - the mum eventually got there.
The blonde beauty and TikToker Jen Jeep joked that it wasn't until she hit menopause in her 50s that she realised she had fallen victim to ''eyeliner blindness''.
