Meghan Markle, 40, and Prince Harry, 37, have been featured on the cover of Time magazine's annual 100 most influential people in the world issue. The Duke and Duchess of Sussex, who quit their royal duties last year and moved from Britain to California, are featured on one of seven worldwide covers highlighting the honorees. Ms Turner has hit out at the royal couple for their "retouched" photos.
Speaking on the Jeremy Vine show, Ms Turner said: "I'm really surprised that they allowed that much retouching.
"They would have had approval on those photos and I think it's really important particularly for young women that celebrities don't go in for that much retouching."
Host Jeremy Vine added: "How do you know it's been retouched?
"It might have just been using a different soap."
Ms Turner added: "Oh, come on."
READ MORE: Queen backs Kate hours after Duchess' royal work dwarfed by Sussexes
In defence of Meghan, she previously told Create & Cultivate in 2016: "You can be a woman who wants to look good and still stand up for the equality of women."
Ms Turner's comments echoe a controversial debate on magazines defining how they believe women should look sparking a dangerous precedent leading to depression and body dysmorphia, according to the London College of Contemporary Arts.
The former actress has been vocal in the past about airbrushing.
In 2017, she told Allure: "To this day, my pet peeve is when my skin tone is changed and my freckles are airbrushed out of a photoshoot."
Meghan is also a very public supporter of body positivity activist Jameela Jamil after whose I Weigh account was spotlighted by the Sussexes by their royal Instagram account on Mental Health Awareness Week.
Harry and Meghan left Britain in 2020 to build an independent life, launching their Archewell Foundation as well as cutting lucrative deals for producing TV shows and a podcast.
Chef Jose Andres, who funded the World Kitchen nonprofit that partners with the Archewell Foundation, wrote in a tribute that it would have been safer for the couple to stay silent.
"That's not what Harry and Meghan do, or who they are...In a world where everyone has an opinion about people they don't know, the duke and duchess have compassion for the people they don't know. They don't just opine. They run toward the struggle,'' Andres wrote.
DON'T MISS
Meghan and Harry under pressure to produce 'six shows for Spotify' [INSIGHT]
Meghan and Harry's daughter to miss out on 'wearing royal gown' [VIDEO]
Kate and William's 'move to Windsor' will allow George to follow dad [ANALYSIS]
Spears, 39, made the list for the first time in a year that has seen her struggle to get rid of a conservatorship that has controlled her personal and business affairs for 13 come under increasing scrutiny.
The "Stronger" singer was celebrated by reality star Paris Hilton, who wrote that Spears "embodies joy" despite her struggles. "So we stand by here and root for her as she turns pain to purpose, her unwavering spirit stronger than ever."
Rapper Megan Thee Stallion, writing about seven-time Grammy winner Eilish who also got her own cover, called the 19-year-old musician "a unique soul" who "stands up for herself and advocates for women everywhere."
The special issue of Time goes on sale on Friday.