Upon release, "Living Proof" received mixed reviews from music critics. Some of them praised the album itself, saying that it was even better than "Believe", while others criticized the excessive use of Auto-Tune on Cher's vocals. Commercially, the album did not reach the same success as its predecessor, debuting at number nine on the US "Billboard" 200 with first-week sales of 82,000 copies. It was also received moderately in Europe, peaking within the top 30 in Sweden and the top 50 in the United Kingdom, despite being certified gold by both Swedish Recording Industry Association (GLF) and British Phonographic Industry (BPI). "Living Proof" is estimated to have sold more than one million copies worldwide.