The 22-year-old has overcome the back injury that brought his World Cup to a premature end, but new signing Thomas Vermalean was only able to undergo specific physiotherapy work
The 22-year-old saw his World Cup campaign ended at the quarter-final stage following a collision with Colombia's Camilo Zuniga at the start of July.
But after just under six weeks of rehabilitation, Neymar joined the rest of his team-mates for full training on Monday, along with new signing Jeremy Mathieu and Xavi who have also overcome knocks.
However, new signing Thomas Vermalean, who arrived at the club from Arsenal in a €19 million deal on Saturday, didn't train and instead underwent specific physiotheraphy work.
Barca begin their quest to regain La Liga when they host Elche on August 24, in what will be Luis Enrique's first official match in charge.