On Thursday, the Oscar winner shared a series of photos on Instagram that seemed to show that the Grazia magazine had retouched her image and removed her ponytail. Upon seeing the cover photo, Nyong'o spoke out against the publication in a lengthy caption.
"As I have made clear so often in the past with every fiber of my being, I embrace my natural heritage and despite having grown up thinking light skin and straight, silky hair were the standards of beauty, I now know that my dark skin and kinky, coily hair are beautiful too," she began. "Being featured on the cover of a magazine fulfills me as it is an opportunity to show other dark, kinky-haired people, and particularly our children, that they are beautiful just the way they are."
The 34-year-old actress goes on to slam Grazia for photoshopping the image without asking her permission. "I am disappointed that @graziauk invited me to be on their cover and then edited out and smoothed my hair to fit their notion of what beautiful hair looks like," she continued. "Had I been consulted, I would have explained that I cannot support or condone the omission of what is my native heritage."
Nyong'o concluded her post by noting that there is "still a very long way to go to combat the unconscious prejudice against black women's complexion, hair style and texture."
The actress' fiercest moments on the red carpet:
Lupita Nyong'o best red carpet moments
Lupita Nyong'o best red carpet moments
TORONTO, ON - SEPTEMBER 06: Actress Lupita Nyong'o arrives at the '12 Years A Slave' Premiere during the 2013 Toronto International Film Festival Princess of Wales Theatre on September 6, 2013 in Toronto, Canada. (Photo by Terry Rice/WireImage)
PALM SPRINGS, CA - JANUARY 04: Lupita Nyong'o arrives at the 25th Annual Palm Springs International Film Festival Awards Gala at Palm Springs Convention Center on January 4, 2014 in Palm Springs, California. (Photo by Steve Granitz/WireImage)
LONDON, ENGLAND - FEBRUARY 16: Lupita Nyong'o attends the EE British Academy Film Awards 2014 at The Royal Opera House on February 16, 2014 in London, England. (Photo by David M. Benett/Getty Images)
WESTWOOD, CA - FEBRUARY 24: Actress Lupita Nyong'o attends the premiere of Universal Pictures and Studiocanal's 'Non-Stop' at Regency Village Theatre on February 24, 2014 in Westwood, California. (Photo by Kevin Winter/Getty Images)
LOS ANGELES, CA - FEBRUARY 26: Actress Lupita Nyong'o is honored by LoveGold at Chateau Marmont on February 26, 2014 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
HOLLYWOOD, CA - MARCH 02: Actress Lupita Nyong'o attends the 86th Oscars held at Hollywood & Highland Center on March 2, 2014 in Hollywood, California. (Photo by Jeff Vespa/WireImage)
NEW YORK, NY - MAY 05: Lupita Nyong'o attends the 'Charles James: Beyond Fashion' Costume Institute Gala at the Metropolitan Museum of Art on May 5, 2014 in New York City. (Photo by Kevin Mazur/WireImage)
WASHINGTON, DC - MAY 03: Lupita Nyong'o attends the 100th Annual White House Correspondents' Association Dinner at the Washington Hilton on May 3, 2014 in Washington, DC. (Photo by Paul Morigi/WireImage)
HOLLYWOOD, CA - FEBRUARY 22: Actress Lupita Nyong'o poses in the Press Room during the 87th Annual Academy Awards at Loews Hollywood Hotel on February 22, 2015 in Hollywood, California. (Photo by C Flanigan/Getty Images)
CANNES, FRANCE - MAY 13: Actress Lupita Nyong'o attends the opening ceremony and premiere of 'La Tete Haute ('Standing Tall') during the 68th annual Cannes Film Festival on May 13, 2015 in Cannes, France. (Photo by Dominique Charriau/WireImage)
NEW YORK, NEW YORK - APRIL 08: Actress Lupita Nyong'o attends the Variety's Power Of Women: New York 2016 at Cipriani Midtown on April 8, 2016 in New York City. (Photo by Paul Zimmerman/WireImage)
NEW YORK, NY - MAY 02: Lupita Nyong'o attends 'Manus x Machina: Fashion In An Age Of Technology' Costume Institute Gala at (Photo by Rabbani and Solimene Photography/Getty Images)
NEW YORK, NY - JUNE 12: Lupita Nyong'o attends the 70th Annual Tony Awards at the Beacon Theatre on June 12, 2016 in New York City. (Photo by D Dipasupil/FilmMagic)
TORONTO, ON - SEPTEMBER 10: Actress Lupita Nyong'o attends the 'Queen of Katwe' premiere during the 2016 Toronto International Film Festival at the Roy Thomson Hall on September 10, 2016 in Toronto, Canada. (Photo by Dominik Magdziak Photography/Getty Images)
HOLLYWOOD, CA - SEPTEMBER 20: Actress Lupita Nyong'o attends the premiere of Disney's 'Queen Of Katwe' at the El Capitan Theatre on September 20, 2016 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
LONDON, ENGLAND - OCTOBER 09: Lupita Nyong'o attends the 'Queen Of Katwe' - Virgin Atlantic Gala screening during the 60th BFI London Film Festival at Odeon Leicester Square on October 9, 2016 in London, England. (Photo by Karwai Tang/WireImage)
LOS ANGELES, CA - OCTOBER 24: Actress Lupita Nyong'o arrives at the 23rd Annual ELLE Women In Hollywood Awards at Four Seasons Hotel Los Angeles at Beverly Hills on October 24, 2016 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - NOVEMBER 12: Actress Lupita Nyong'o attends the Academy of Motion Picture Arts and Sciences' 8th annual Governors Awards at The Ray Dolby Ballroom at Hollywood & Highland Center on November 12, 2016 in Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
NEW YORK, NY - MAY 01: Lupita Nyong'o attends the 'Rei Kawakubo/Comme des Garcons: Art Of The In-Between' Costume Institute Gala at Metropolitan Museum of Art on May 1, 2017 in New York City. (Photo by Theo Wargo/Getty Images For US Weekly)
NEW YORK, NY - JUNE 05: Lupita Nyong'o attends the 2017 CFDA Fashion Awards at Hammerstein Ballroom on June 5, 2017 in New York City. (Photo by Taylor Hill/FilmMagic)
SAN DIEGO, CA - JULY 22: Actor Lupita Nyong'o from Marvel Studiosï¿½ ï¿½Black Panther' at the San Diego Comic-Con International 2017 Marvel Studios Panel in Hall H on July 22, 2017 in San Diego, California. (Photo by Alberto E. Rodriguez/Getty Images for Disney)
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The Star Wars: The Force Awakens star has made it her mission to change how the world views beauty.
"European standards of beauty are something that plague the entire world -- the idea that darker skin is not beautiful, that light skin is the key to success and love," she told Glamour magazine in 2014. "I remember seeing a commercial where a woman goes for an interview and doesn't get the job. Then she puts a cream on her face to lighten her skin, and she gets the job! This is the message: that dark skin is unacceptable."
She added, "Beautiful people have many advantages, but so do friendly people. I think beauty is an expression of love."