Buffon suffered his second Champions League final defeat when Barcelona beat Juventus 3-1 on Saturday, having previously lost against AC Milan in the 2003 showpiece.
Despite producing a superb performance in the stadium where he became a World Cup winner with Italy in 2006, Buffon could do nothing about the goals in Berlin by Ivan Rakitic, Luis Suarez and Neymar as Barca lifted the trophy for the fifth time.
Juventus fought back to 1-1 thanks to Alvaro Morata’s second-half equaliser and briefly had the Spanish champions rattled.
Buffon said: “There was a moment, a ten-minute spell, when we thought we had the match in our hands and that’s exactly when we lost it.
“We didn’t manage to win, but not because we didn’t try, we gave everything we had.
“Barcelona are the best team in the world in my opinion, but we have proved that we could compete.”
And when asked about his own future the 37-year-old confirmed he still wanted to win a first Champions League title.
“I want three more years at this level to reach a few more dreams.”