Shop with HSA/FSA

A Health Savings Account (HSA) or Flexible Spending Account (FSA) allows you to set aside pre-tax dollars to pay for qualified health and wellness expenses. It’s a smart way to save while investing in your health.

Yes! All Carlson Labs products are eligible for purchase using your HSA or FSA debit card. Simply select “Flex | Pay with HSA/FSA” at checkout to use your benefits on Carlson supplements that support your wellness routine.

A Letter of Medical Necessity (LOMN) is a note from your healthcare provider that explains why a specific product, service, or treatment supports your health. When using a Health Savings Account (HSA) or Flexible Spending Account (FSA), certain expenses may require an LOMN for reimbursement—particularly those not automatically recognized as eligible by IRS guidelines.

If your HSA or FSA administrator requests an LOMN, ask your healthcare provider to complete a brief statement describing how the product or service contributes to your overall health or treatment plan.

Once completed, submit the letter directly to your HSA or FSA administrator when filing for reimbursement.

Carlson Labs does not collect or process Letters of Medical Necessity, but your healthcare provider or account administrator can guide you through their specific requirements.

Yes. You can still use your HSA or FSA funds for reimbursement. Just select “Flex | Pay with HSA/FSA” at checkout and use your regular credit card. You’ll receive an itemized receipt from Flex to submit to your HSA or FSA provider for reimbursement.

You can use your HSA or FSA debit card to purchase eligible products on our website. Simply add your items to the cart, then choose “Flex | Pay with HSA/FSA” at checkout. Enter your HSA or FSA card details to complete your order.

If you don’t see the “Flex | Pay with HSA/FSA” option, you may be checking out through Shop Pay. To view all payment methods, select “Check out as guest” instead.

Yes! You can use your HSA or FSA card on eligible Carlson purchases even during sales or promotions. The discount will apply at checkout, and your HSA/FSA payment will process like any other debit card.

Your HSA or FSA card may be declined if any information—like the card number, expiration date, or ZIP code—is incorrect, or if your account has insufficient funds. Double-check your details or contact your HSA/FSA provider to confirm your balance before trying again.

We recommend checking with your HSA or FSA provider before purchasing to confirm eligibility. If your claim is denied, share your provider’s response with us so we can work with Flex to review it. Some employer-sponsored FSAs set their own rules, so confirming eligibility in advance is always best.

Yes, Carlson Labs accepts returns and exchanges for eligible HSA/FSA purchases in accordance with our standard return policy. However, once a refund is issued, you may need to contact your HSA or FSA administrator to confirm how the funds are credited back to your account.

We offer a 30-day return policy for all products in original packaging.