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Dentistry + Aesthetics

we are the perfect blend of
dentistry and aestheticS with personality

WHO WE ARE: Your Cosmetic Dentist in Bellevue, WA

Proudly serving Bellevue, WA and the greater Eastside — including Redmond, Kirkland, and Seattle. Dr. Libbi Finnessy offers cosmetic dentistry, medical aesthetics, and longevity medicine all under one roof. Services include porcelain veneers, dental implants, EMSCULPT NEO, EMFACE, EMSELLA, Botox, facial fillers, and medical grade skincare.  

Beauty is a science. Longevity is an Expertise.

At Longevity Expertise, we don’t just treat teeth — we treat the whole person. Your mouth is the gateway to your overall health, and its condition reflects and impacts everything from heart health and diabetes to brain function. But true well-being goes far beyond a perfect smile. Led by Dr. Libbi Finnessy, our practice is built on a science-meets-beauty philosophy, where cutting-edge dentistry, aesthetics, and longevity-focused treatments.

Cosmetic and General Dentistry

Aesthetics and Med Spa Services

Dentistry

A radiant, healthy smile is key to overall health and confidence. Take control of your smile with the Boss of the Floss! Dr. Libbi Finnessy offers a full range of general and cosmetic dentistry services, including porcelain veneers, dental implants, crowns, bridges, and oral surgery. Recognized as a top dentist in “Best of 425” and “Best of Seattle,” Dr. Libbi provides smile makeovers that can transform your appearance and boost your self-confidence. Experience how a beautiful smile can open doors for you. Call us today!  

Home

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Home

Aesthetics

Aesthetic treatments focus on restoring and enhancing your cosmetic appearance. These specialized procedures address deep scarring, skin laxity, wrinkles, hyperpigmentation, excess fat, and more, provided by Dr. Libbi Finnessy – Boss of the Gloss! They not only improve your features but also significantly boost your self-esteem. Studies have shown that aesthetic treatments can reduce symptoms of depression, increase confidence, and enhance psychological functioning.  The devices she utilizes in office include, Emsculpt Neo, Emface, Exion, and Emsella, as well as botox, facial fillers, teeth whitening, cosmetic dentistry, and more at her clinic.  

Dr. Libbi Finnessy proudly serves Bellevue, Redmond, Kirkland, and Seattle.  Longevity Expertise brings cosmetic dentistry, medical aesthetics, and longevity together under one roof.

cosmetic dentist Bellevue WA Dr. Libbi Finnessy

Who is the Boss

Dr. Libbi Finnessy

Dr. Libbi Finnessy is a dentist, medical aesthetics expert, and a truth-teller based in Bellevue, WA.  Graduating Summa Cum Laude with a degree in Biomedical Science to earn her Doctorate of Dental Surgery from Marquette University School of Dentistry.  She is a caring provider who believes science and beauty go hand in hand.  Dr. Libbi founded Longevity Expertise to bring cosmetic dentistry, medical aesthetics, and longevity under one roof.  Recognized as a top dentist in “Best of 425” in 425 Magazine and “Best of Seattle” in Seattle Magazine, she’s built an outstanding career on transforming smiles and lives — but her impact goes far beyond the surface. Come visit us and learn first-hand about her incredibly care based philosophy today.