Denzel Washington -- Lookin' Detoxified

There's a damn good reason Denzel Washington is considered one of the best actors around ... he can flash a big, bright smile on his face and deftly deflect!

Denzel was on his way out of Tra Di Noi in Malibu Saturday when our photog asked the 59-year old actor about his recent 2 week detox at a residence in Orange County.

As we previously reported ... the detox was not just for alcohol ... it was an overall cleanse for toxins. He had partied for a month on a yacht with his wife and ... overindulged in a big way.

Whatever he did worked ... he looks great.