The 'High School Musical' star, who sought treatment in rehab last year to control his hard-partying lifestyle and drug issues, is apparently working with an expert to help him stay on track, reported Contactmusic.
"Zac's committed to his sobriety. It's an ongoing process," said a source.
Last month, Efron, 26, and his bodyguard were involved in a fight with a group of transients in Los Angeles.
It was earlier reported that Efron, 26, had distanced himself from those who questioned his sobriety.
