We're so glad she's healthy and on the mend!

Shannen Doherty spent her 46th birthday shopping in Malibu yesterday, and the actress has really bounced back after her chemo treatments to treat her breast cancer. She looked fresh faced and lovely, and her hair is growing back! The 90210 star has had a rough couple of years, but she's been an inspiration to so many, including close friend Sarah Michelle Gellar.

The Buffy star hopped on Instagram to pay gush about her pal on her milestone day.

"Where do I even start with this birthday girl?!? She's everything. She's inspired me...well since... even before I called her a friend. But over the last year, I have watched her inspire and give hope to the world. I thought I knew how tough she was, but I didn't even have a clue to her power," she captioned a throwback pic of the pair.

"When I think twice about leaving the house without makeup, Shannen shaved her head on the public stage. While I fiercely guard my privacy, she opened her life, her struggles, her fears and her journey to help people she has never even met. She is a true friend to everyone. Shannon also has the greatest laugh in the world, which is why I chose this picture. To the fiercest, most loyal friend I know....let's party like it's your birthday!!! I love you," she added.

Brenda Walsh is a fighter!