The Honest Company co-founder celebrated the occasion with her and Warren's two daughters, Honor, 7, and Haven, 4. Judging by Alba's adorable Snapchats, it looks like the trio had a great day even if Warren couldn't be there!
"My dates tonight on my Anniversary," Alba captioned a pic of her girls walking in front of her down an alley.
In fact, the trio was all smiles as they enjoyed a low-key dinner.
Even though Warren, 37, couldn't join his beloved in person, he did send flowers and a sweet note to their home. "Mrs. Warren, the last eight years have been the best of my entire life," the card read. "Thank you for being my everything. Happy Anniversary."
Alba also took to Instagram to share a photo of another gorgeous bouquet her hubby sent to her Honest Company office on Thursday.
"Missing my babe on our Anniversary but he sent a super perty flower arrangement to my office," Alba, who said "I do" to Warren in 2008, captioned it.
"I still get butterflies in my stomach around you," he captioned a pic of himself giving his wife a kiss on the cheek. "I still wake up in the middle of the night and smile because you're next to me. I still laugh at your jokes. I am still inspired by you. I'm still in awe of your beauty. The only thing that's changed since the first day I met you is our age. Happy Birthday my sweet love!!”
Even though the two are getting older, Alba has proved she's completely ageless. A few days before her birthday, she flaunted her toned figure in a sexy tri-colored bikini while vacationing in Hawaii. To hear more on her adventures in "paradise," watch the video below.