Moreno became the president of the Philippine Couture Association, the first association of fashion designers in
Manila,
Philippines. He was the fashion designer for the Bayanihan Philippine Dance Company. His fashion designs were exhibited at the World's Fair in
Seattle, Washington, and
New York City. His fashion designs appeared on the pages of fashion magazines such as
Vogue, ''
Harper's Bazaar, Holiday, and Le Figaro, where Moreno introduced the words jusi
, piña
, and lepanto'' to world fashion, the first time Filipino fashion terminologies were incorporated in world fashion artistry. Due to his popularity from the 1960s to 1980s, many heads of state, royalties, and prominent personalities from Asia, Europe, and the Americas became his clients for decades. Prominent people who were adorned by Moreno's artistic beadwork, embroidery and hand-paintings include the
First Ladies of the Philippines from the 1960s to the 1980s, United States first ladies
Nancy Reagan and
Pat Nixon;
Betty Ford,
Queen Sirikit of Thailand,
Tsaritsa Margarita of Bulgaria,
Queen Sofia of Spain,
Princess Margaret of the United Kingdom, the Marquesa de Villaverde,
María del Carmen Martínez-Bordiú y Franco,
Princess Suga of Japan,
Cristina Ford (second wife of
Henry Ford II),
Margot Fonteyn, Deeda Blair (Catherine "Deeda" Gerlach, wife of
William McCormick Blair, Jr.), and Filipino celebrities. Moreno also authored the books
Kasalan, a fashion book about
Filipino weddings, and
Philippine Costume, a book on traditional Filipino dresses. He was regarded as the
Fashion Czar of Asia by French tabloid Le Figaro, sealing his status as fashion royalty. The title later on was used by the Asian fashion community in defining the artistic works of Moreno. Despite the fame, Moreno was known by many accounts for his rooted behavior where he would give-away his prized gowns for people who could not afford lavish weddings. In 1962, Moreno designed a dress for Puerto Rican actress
Rita Moreno for the
Academy Awards where she won Best Supporting Actress. She later wore the same dress at the 2018 ceremony where it made news. The dress is now on display at the
Academy Museum of Motion Pictures. ==Retirement==