“Mob Wives” star Renee Graziano is 40 days sober following a stint at a Texas rehab … and is now continuing to receive treatment thanks to the assistance of Lamar Odom.

A rep for Renee tells TMZ she’s now focusing on trauma therapy at Lamar’s wellness facility — which aims to fight substance abuse, a cause near and dear to Lamar following his own near-fatal overdose in 2015.

A rep for Lamar says he actually reached out to Renee via IG when she made headlines for her rehab stay in November … telling her if she needed anything while in treatment, to just let him know.

We’re told the ex-NBA star also informed her of the services offered at Vanity Wellness Treatment Center, his facility in Sherman Oaks, CA.

Two weeks ago, Renee reached back out to Lamar … saying she needed treatment for extensive trauma, and the program she currently was in at that time didn’t offer that type of care.

Lamar immediately put the gears in motion … connecting Renee with admissions for his facility — and she checked in last Thursday after flying to Cali from Texas.

So far, so good … Renee is loving the program and plans on staying for another 60+ days while working on her mental health, sobriety and physical health.

This isn’t the first celeb backing she’s had … seeking assistance from “The Hills” star Jason Wahler‘s foundation, Red Songbird, which works with those struggling with substance abuse and trauma-related mental health issues.