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description=Ultrahuman is building the world’s most comprehensive self-quantification ecosystem. We help people understand how their body, lifestyle, and environment interact by connecting data across wearables, metabolism, home health, and biomarkers—turning everyday signals into clear, actionable insights for long-term health and performance.;

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use your hsa fsa with ultrahuman flex shop the spotlight shop smart health use your hsa fsa with ultrahuman ultrahuman is building the world s most comprehensive self quantification ecosystem we help people understand how their body lifestyle and environment interact by connecting data across wearables metabolism home health and biomarkers turning everyday signals into clear actionable insights for long term health and performance shop ultrahuman com hsa fsa eligible products from ultrahuman smart health home ultrahuman smart health ring pro ultrahuman select flex at checkout to pay with your hsa fsa funds some products may require a short chat based consultation during checkout to verify eligibility shop now frequently asked questions if you can t find what you re looking for please reach out to support withflex com what is an hsa or fsa health savings accounts hsas let you set aside pre tax dollars to pay for qualified health expenses hsas are linked to high deductible health plans and funds in these accounts roll over year after year flexible spending accounts fsas allow you to use pre tax dollars for eligible health expenses unlike hsas fsas are not tied to a specific health plan and often require you to use the funds within the calendar year fsas are typically provided by employers how do i use my hsa fsa with flex at checkout select flex pay with hsa fsa some products require a letter of medical necessity complete a brief chat based telehealth consultation to confirm eligibility if required enter your hsa fsa card details and complete your purchase if you don t have your hsa fsa card available use a regular credit or debit card submit your letter of medical necessity and itemized receipt provided by flex to your hsa fsa administrator for reimbursement why is my hsa fsa card being declined hsa and fsa cards are debit cards and the most common reason for declines is insufficient funds reach out to your hsa fsa administrator to confirm your balance what if i don t have my hsa fsa card available if you don t have your hsa or fsa card handy still select flex pay with hsa fsa as your payment method enter your credit card information and flex will email you an itemized receipt to submit for reimbursement what is a letter of medical necessity lmn a letter of medical necessity is a document from a licensed healthcare provider that verifies the medical necessity of a product or service making it eligible to purchase using your hsa or fsa this might include items or treatments like supplements or physical therapy that aren t automatically recognized as eligible expenses do i qualify for a letter of medical necessity lmn a licensed clinician will determine your eligibility during a chat based telehealth consultation according to irs guidelines you must have a medical condition that warrants the product or service you intend to purchase using your hsa fsa a range of conditions such as cardiovascular metabolic musculoskeletal autoimmune neurological or mental health conditions could qualify how long is my letter of medical necessity valid for your letter of medical necessity is valid for 12 months from the date of issue it can be used for any eligible purchases made during this time be sure to keep and submit all related receipts when filing with your hsa fsa administrator what do i do with my letter of medical necessity you should keep it on file for at least three years in the event of an irs audit of your hsa or fsa account occasionally fsas may ask for the letter to confirm the eligibility of your purchase which ultrahuman products are hsa fsa eligible all products shown in the flex marketplace are hsa fsa eligible some may require a letter of medical necessity lmn ultrahuman may also offer additional eligible items on their website when shopping directly on ultrahuman s site look for hsa fsa messaging on individual product pages flex accepts hsa fsa cards credit debit cards and split payments select flex at checkout to pay for your purchase shop smart health shop ultrahuman shop now shop hsa fsa eligible brands products with flex shop all brands search company for business for shoppers blog legal community 2026 flex technology co all rights reserved your privacy choices need help reach out to support withflex com