As a fashion designer, Knowles has been featured in publications such as
Vogue,
Cosmopolitan,
Harper’s Bazaar, ''
L'Officiel, InStyle, and Sports Illustrated. She has also designed costumes for a number of films including Dreamgirls, Pink Panther, Austin Powers in Goldmember, Obsessed, and Cadillac Records''. She began her career at the age of 19 when she moved to California to work as a makeup artist for
Shiseido Cosmetics. However, she returned home when her parents fell ill. Knowles's rise to prominence came as costume designer for Destiny's Child. In the early days of the group's career, she created outfits that the members wore on-stage and to events "out of necessity" because money was limited. She also styled the girls' hair, and they practiced their routines at her shop. In 2002, she published a book titled ''Destiny's Style: Bootylicious Fashion, Beauty and Lifestyle Secrets From Destiny's Child'' in which she discussed how fashion affected Destiny's Child's success. The book was published by
HarperCollins. In 2004, Knowles launched the clothing line
House of Deréon alongside Beyoncé, naming it after her mother Agnes Deréon. In 2010, she expanded the line to Walmart after it was previously being sold on the
Home Shopping Network. In 2016, she made a cameo in
Beyoncé: Lemonade, appearing in the visual for the song "All Night", which includes shots of her with then-husband Richard Lawson on their wedding day. In 2019, she appeared briefly in the background of a few shots in Beyoncé's
Homecoming, a concert film about the singer's
2018 Coachella Valley Music and Arts Festival performances. in 2019|271x271px In July 2020, Knowles made a cameo in Beyoncé's Disney+ film
Black Is King, which incorporates music from soundtrack album
The Lion King: The Gift. Knowles makes appearances in the visuals for the songs "Mood 4 Eva" and "
Brown Skin Girl." Before the film's release, she revealed she had let her daughter borrow art pieces for the project. Thus, she is credited as an art curator on the film. That same month, Knowles appeared on
The Today Show to promote her Instagram show "Talks with Mama Tina", which addresses voter suppression, race relations and other social issues. On May 23, 2021, Knowles presented rapper
Trae tha Truth with the Change Maker Award and introduced
Padma Lakshmi at the
Billboard Music Awards. On June 16, 2021, Knowles appeared in Facebook's Lift Black Voices Hub, in which she revealed what
Juneteenth means to her family. In August 2021, it was announced that Knowles would be producing an upcoming program for
Discovery, Inc. and the
Oprah Winfrey Network, which aims to show the difficulties Black men face today, while highlighting and celebrating the triumphs and successes of everyday living. The docuseries titled
Profiled: The Black Man aired in early 2022. In December 2021, Knowles announced her show "Talks with Mama Tina" would begin airing on Facebook and include interviews with celebrities, such as
Ciara and
Zendaya. The first episode premiered on December 22, with Beyoncé and her children performing the show's theme song. The song was nominated for Outstanding Original Song at the
49th Daytime Emmy Awards. In April 2022, Knowles made her acting debut on
The Proud Family: Louder and Prouder. That same month, she had a role in the
Lifetime thriller movie
Wrath: A Seven Deadly Sins Story, starring
Michelle Williams,
Antonio Cupo and
Romeo Miller. In February 2024, Knowles began serving as the vice chairperson of
Cécred, an American hair care brand, founded by Beyoncé. In October 2024, Knowles announced her memoir,
Matriarch, which was published in April 2025. It was chosen by
Oprah Winfrey as the April 2025 selection for
Oprah's Book Club 2.0. In early 2026, her namesake
Houston Livestock Show and Rodeo gumbo booth was briefly closed by local health inspectors after a customer reported a complaint. == Philanthropy ==