Covermark was born in the United States in the 1930s, when Lydia O'Leary, a chemist by profession and amateur painter, decided to combine her scientific and artistic knowledge to create a cosmetic product capable of camouflaging skin imperfections effectively, with a long-lasting result and a natural finish. The desire to conceal a large birthmark that she herself had on her face led her to devote years of research in the laboratory until she came up with the revolutionary formula of Covermark Camouflagewhich met all her objectives and for which she was granted a patent.
Lydia O'Leary set up her own clinic in New York, and for years devoted her professional life to instructing her patients on how to correctly apply the products she had created.