CastleFlexx
CastleFlexx is an at-home stretching and strengthening device designed to relieve joint, muscle, and ligament pain—key for managing conditions like arthritis, plantar fasciitis, fibromyalgia, and chronic fatigue syndrome. Its ergonomic design supports full-body mobility, targeting calves, hamstrings, hips, and glutes while allowing gentle upper body stretches. Comfortable grips and soft materials make it ideal for those with limited mobility or chronic pain. HSA/FSA eligible for qualified customers, CastleFlexx offers an accessible, effective way to support long-term musculoskeletal health.
HSA / FSA eligible products
CastleFlexx
CastleFlexx Sport
Non Toxic HOT/COLD packs
How to use your HSA / FSA funds with Truemed
Checkout
Find the Truemed logo during checkout. Exit the "Shop Pay" pop-up if prompted.
Take a private health survey
A licensed provider will review your answers to determine eligibility.
Make your purchase
Pay with your HSA/FSA card or a credit card. If you use a regular credit card, follow the guide included with your LMN to submit your purchase for reimbursement.
Curious if you qualify?
CastleFlexx has been shown to positively impact the following categories
Bones & Joints
Brain & Nervous System
Digestive Health
Hormonal & Endocrine
Mental Health
Women's Health
Your health, your savings
All products on Truemed are HSA/FSA eligible for qualified customers — so you can invest in what matters without the out-of-pocket cost.