About Jennifer, Founder & Head Curator


Jennifer Lynne Mathieu Henshall is trained in The ORIGINAL Barre Class developed by Lotte Berk through The London Method, a certified American Barre Technique Master Barre Instructor, a NASM Certified Personal Trainer, an AFAA Certified Group Fitness Instructor, a Moms Into Fitness Prenatal & Postnatal Fitness and Nutrition Specialist, a Studio Pilates Certified Pilates InstructorAdvanced Crystal Master, Certified Oracle Card Reader, Clinical Aromatherapist and author who discovered barre — her soulmate workout — while training for the 2016 Boston Marathon.

A long-time runner, former bodybuilder and melanoma skin cancer survivor, Jennifer’s battle with autoimmune disease has changed her fitness focus to one that incorporates more mindful, purposeful and low-impact movements.

She is certified in a variety of barre techniques, including BarreAmped Bounce, Prenatal/Postnatal Barre, H.I. (High Intensity) Barre, Barre-Less Barre Ballet Aerobics, Barre Stretch and BOSU Barre Strong.

In 2021, Jennifer became a certified Advanced Crystal Master through the Hibiscus Moon Crystal Academy, where she discovered the unique, but undeniable, benefits of the relationship between barre fitness and crystal healing. 


A former communication professor and professional and mother of two daughters, Jennifer founded The Barre Library for barre enthusiasts seeking a complete mind, body and spirit routine. She is excited to present a virtual sacred space where barre students, instructors and devotees can come together to create, develop and maintain a strong connection between the mind, the body and the spirit through barre.