Similar products were produced in Europe and manufactured by other companies in the United States, which included her major rivals, Annie Turnbo Malone's Poro System from which she derived her original formula and later, Sarah Spencer Washington's Apex System.
Ähnliche Produkte wurden in Europa angefertigt und von anderen Firmen in den USA hergestellt, darunter ihre Hauptrivalen, Annie Turnbo Malones Poro System, von dem sie ihre originale Formel abgeleitet hatte, und später Sarah Spencer Washingtons Apex System.