She was the sister of actor and film director René Mugica.
Mujica attended school in La Plata.
Her memoir El tiempo entre los dientes was published in 1967.
Carhué's Italian Mutual Society Entertainment Hall is named "René Mugica and Mugica Alba" in recognition of the siblings.
In 1970, she participated in the Odol Pregunta program, answering about the life and work of Sarah Bernhardt,[1] reaching the final and withdrawing without risking the maximum amount of one million pesos, in order to keep half of it and pay debts incurred.