Mary-Louise Parker straight hair

Mary-Louise Parker with super straight strands. Photo: Ben Gabbe/Getty Images

At 46-years-old, Mary-Louise Parker is a breath of fresh air with her age-defying skin and shiny hair.

So when celebrity makeup artist Tina Turnbow sat down with the "Weeds" star for The New York Times Style Magazine to talk everything from good genes to Twizzlers, we were enthralled. Parker dished on the importance of wearing sunblock and eating healthy, plus her musician beau Charlie Mars revealed his grooming habits.

There's nothing out of the ordinary when it comes to Parker's beauty regime. But when Turnbow asked if she's had any beauty mishaps recently, we were surprised to learn of Parker's disappointment with the Brazilian Hair Straightening Treatment.

"I've experienced hair fall-out in the past, and it is not fun. This treatment resulted in more," Parker told Turnbow.

Her advice? "Don't do it!"

Head over to The New York Times Style Magazine, T, for the full interview.