The TV regular took to Instagram on Monday afternoon to upload the natural shot.
Laying herself bare, Mel, 48, posed for a post workout selfie.
Sitting in her car before heading home, the television regular exposed her freckles as she snapped away.
Gazing longingly into the camera, Mel showed off her natural beauty by slicking her long locks behind her ears.
Mel captioned the shot: “Hot yoga face. Brutally hot 90 mins this morning but it’s worth it! Any exercise today kids? #hotyoga #exercise #selfie.”
Within minutes the post was flooded with massages of support and adoration.
“You really are an absolute beaut,” one fan wrote.
Another added: “I want to look like that after hot yoga.”
“You look blooming gorgeous,” a third praised.
Meanwhile, a fourth continued: “Mel you are one gorgeous lady.”
Mel is thought to be single after previously being linked to X Factor star Olly Murs.
The duo were first romantically linked in 2017, though initially tried to keep their fling under wraps.
However, during an appearance on Loose Women last year, Olly reluctantly confirmed he had been more than friends with the brunette beauty.
A source spilled to The Sun last year: “Mel loves a younger man and really fell for Olly when he got into shape late last year.
They started texting for ages and some of the messages ended up getting quite saucy.
“They ended up meeting for a date and have had a whole series of secret dates at his house where she will sometimes stay overnight.