The 27-year-old hit back at online trolls by posting the stunning picture to her 1.7 million followers.
In the upload, Scarlett can be seen smiling to the camera showing off her pearly whites and clear complexion.
The former I’m a Celebrity… Get Me Out of Here! winner also showcased her piercing blue eyes in the close-up snap.
Her long brunette tresses were styled in loose waves and cascaded past her shoulders as she struck a pose.
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Scarlett captioned the photo: “Nooooo Make up #nomakeup #selfie Thanks @secretspauk for my lovely @fakebakeunited tan & @lanaioffical blowdry.”
The former Gogglebox star’s army of fans couldn’t wait to compliment the TV favourite with many gushing over how “beautiful” she looks.
One person commented: “Natural and gorgeous! You are beautiful naturally and with make up as you can see from your eyes yam is a beautiful person! Haters gonna hate! Xx
“Stunning don't need makeup,” praised another.
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A third wrote: “Still beautiful with out make up xx.”
Scarlett recently opened up about her constant battle with negative comments online and said the trolls have “affected” her anxiety.
“It’s really affecting my anxiety. I spend days crying and putting on a brave face,” she told The Sun.
Scarlett, who released a workout DVD in 2016 after losing three stone and going down five dress sizes, admitted trolls won’t stop scrutinising her over her weight.
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She added: “I just don’t like this constant pressure. I was slated when I slimmed down to an eight, now I’m slated being a size 12 to 14.”
The presenter's gorgeous post comes after it was reported Scarlett was worried about her reputation after fans began to speculate she was romantically linked to Ant McPartlin.
The brunette beauty was at the centre of allegations after the pair celebrated Ant and Dec’s National Television Awards win together.
Many fans took to Twitter to question the nature of their friendship but Scarlett is believed to be unhappy about the attention and is worried all the speculation will “ruin her reputation”.
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“She and Ant really clicked when they met but it’s purely platonic and she knows it must be difficult for Lisa to see the reports linking the two of them,” a source told Closer.
“Scarlett hates being linked to her male friends. She’s furious at the implication that she’s cheating with Ant and fears all the gossip about her and rumoured men will ruin her reputation.”
Since the speculation over the potential romance, a representative for Ant dismissed the rumours to the Metro as "total bull***”.
