Looking great, Catelynn Lowell!

Teen Mom OG star Tyler Baltierra took to Instagram to show off his wife's impressive weight loss.

"Me & [Catelynn Lowell] will be on [The Doctors] NEXT FRIDAY talking about mental illness awareness! #SpreadTheWord," Tyler wrote, alongside a photo of Catelynn.

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The mom to Nova, 1, has been open about her weight loss struggles on the couple's MTV show, and has even joined Weight Watchers in an effort to shed major pounds. And throughout the journey, her love of nine years has been all the more supportive.

"[Catelynn] you look absolutely beautiful and I'm the luckiest man in the world to be blessed by your beauty, class, and endless capacity to love," he wrote on their ninth anniversary. "Thank you for just being an amazing you…I love you more than words could ever describe."

And now, she's showing off her new amazing look!