Why Dave Coulier Swapped His Toothpaste After Stage 3 Cancer Diagnosis

Dave Coulier, the beloved actor from Full House known for his role as Uncle Joey, is opening up about the lifestyle changes he made following his health battles. After receiving a Stage 3 Non-Hodgkin Lymphoma diagnosis in October 2024 and subsequently facing tongue cancer a year later, Coulier reflected on the items he eliminated from his daily routine.

During a recent appearance on The Kelly Clarkson Show, Coulier explained that he felt compelled to re-examine the common household products he utilized, as he believed they might have played a role in his declining health.

Dave Coulier Says He Got Rid of Products He Considered Toxic

"I wanted to know, ‘Why did my lymphatic system crash?’ And I realized as I went down the rabbit hole, everything in my life was toxic," he shared. "My toothpaste, my shampoo, the garbage bags, the toilet paper, everything, skin cream, everything."

"I said, 'I need to change this, but how do I do it?' It's a pretty daunting task to change your lifestyle like that," he continued. "So I changed one thing. Ireplaced my toothpaste. And I thought, 'I put that in my mouth every day, I'm gonna start there.'"

Following his diagnosis with p16 squamous carcinoma, a type of head and neck cancer identified during a regular six-month medical exam, Coulier underwent 30 rounds of radiation therapy.

Coulier said early detection saved his life “twice” and encouraged others to keep their health in check.

Dave Coulier Gives an Update On His Cancer Battle

In an interview with Good Morning America this past February, Coulier shared the positive news that his cancer had reached remission.

“It’s been a roller coaster ride for sure,” Coulier said. “I’m in remission with both cancers. And what a journey this has been.”

He said he wants his story to encourage others through his story.

“I feel as though I can help people,” he told GMA. “I never wanted to be the poster boy for cancer, believe me. But now I feel like I can encourage people to get those prostate exams and mammograms. Talk to your doctors and get ahead of this.”

“Even though I’m in remission, I feel like cancer’s always in the rearview mirror behind me. ‘Ehh, you trying to pass me here?’ So early detection really means everything,” 

Coulier detailed his perspective during his cancer battle in an extensive December 2025 discussion with AARP.

“I’m not always a “patient patient” because I don’t like what this is doing to the people around me,” he said. “And I’m a very self-sufficient person. I like to work. I like to keep busy. And sometimes it’s almost like you’re on a team, and the coach puts you on the bench, and you’re just watching the entire game go by. 

“That’s how I feel when I’m going through these treatments. So I get frustrated. It’s venting that frustration, and how I choose to do it, which becomes very important.”

Additionally, he spoke about the encouragement and assistance he found through his wife, Melissa, and his former colleagues from the Full House cast during that period.

“John Stamos flew here to Michigan,” Coulier explained. “I had lost all my hair, and so John got together with Melissa and said, ‘I want to make Dave laugh. I’m going to wear a bald cap and surprise Dave.’ And it made me laugh so hard. Seeing John Stamos, who has this amazing shock of hair, bald, is really funny. And that he would go to that length to surprise me in my own home was pretty special. I’m gonna see John in two weekends.”