Troubled “Home Alone” star MACAULAY CULKIN has quit the druggie life – thanks to a soap sexpot who’s the mirror image of his ex-girlfriend Mila Kunis!

Culkin, 33, smooched brunette beauty Jordan Lane Price, 25, during a romantic getaway in Paris, and a pal says she’s helped the actor turn his life around.

“For the first time in years, Mac looks happy and healthy,” a pal told The ENQUIRER. “Jor­dan has rescued him from his drug hell, and it’s ironic that she’s a double for Mila, who dumped Mac because of his drug use.”

Culkin shot to fame in the 1990 big-screen block­buster “Home Alone” and its 1992 sequel. After his marriage to actress Rachel Miner failed in 2002, he started dating Mila, and their 2010 split sent Culkin into a downward spiral of drug use, although his reps denied the drug use.

But since mutual friends introduced him to Jordan, he seems to have straightened himself out. She starred in the now-canceled reboot of the soap “All My Children,” play­ing Celia, a sexy college coed who, in one scene, lounges around in her underwear as she makes out passionately with a hunky lover.

“Certainly, Jordan being a Mila look-alike got to Mac, and they hit it off instantly,” said the source. “While Jordan likes to drink, she’s not a drug user, and she’s shown Mac that he doesn’t need drugs to be happy. She’s also made it clear that if he starts using again, she’s walking away.

“Mac seems so smitten that he quit drugs cold turkey, and Jordan’s helped him move on from Mila.”

“Black Swan” beauty Mila, 30, has been dating her for­mer “That ’70s Show” co-star Ashton Kutcher since 2012, after he split from ex-wife Demi Moore.

During their French get­away, Culkin greeted Jordan at the airport with a red rose, and the two enjoyed intimate dinners at quiet cafes.

But a pal worries Jordan’s fondness for booze, which she’s chronicled on her Twit­ter page, could spell disaster.

“Right now, it’s all good between Mac and Jordan,” said the source.

“But her love of alcohol combined with Mac’s ad­diction problems could be a recipe for disaster. Still, you can’t argue that Mac looks the healthiest he’s ever been, and Jordan got him there.”