'Suits' star Rick Hoffman reveals 'intense' routine behind dramatic physical transformation

Rick Hoffman threw fans for a loop in new photos shared online.

The "Suits" actor boasted about his radical transformation in a selfie shared with the hashtag, "circling back."

Hoffman, 56, posed in front of a mirror for the snap where he noted it had "been a min" since his last update.

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The "Billions" actor sported a classic white button down shirt with gray slacks in the selfie shared with his million followers.

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In addition to what appeared to be dramatic physical changes, Hoffman also strayed from his usual close-shave and showed off a full head of hair.

When one fan asked for his weight loss secrets, Hoffman revealed a few of tips for success.

"Intense intermittent fasting and keto diet," he wrote before adding, "no alcohol."

He previously disclosed a grown-out hairstyle in a bathroom selfie shared last month.

"It just goes to show," Hoffman wrote online.

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Earlier this year, the actor discussed a few health-related issues he's suffered through the years.

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"At the age of 23, I had the biggest challenge I ever had. I got struck with major anxiety where I would be woken up and I felt like I was jumping out of my skin 24/7 in this nightmare," he said in a March interview.

"I was diagnosed with OCD — but this was back in 1993 when nobody really knew what the hell that was — and when you see things from a different perspective like that, where you feel like your world is impending doom around the corner every day, you see the world incredibly differently than other people."

He added, "Had I not had that happen, I never would have made it with any career. It was a real quick slingshot through life lesson to really know where you stand on this planet, which is just with everyone else."

Hoffman famously worked alongside Meghan Markle while portraying attorney Louis Litt in the legal drama "Suits."

"Every season there is some unbelievable conflict that he has to overcome," he told Entertainment Focus in 2016.

"Every year it's like 'how the hell am I going to do this as an actor? How the hell am I going to accomplish what they want me to accomplish?' It's scary as hell, challenging as hell and then more times as not rewarding as hell when I feel like I'm proud of what's been done."