A novel treatment for moderate to severe depression has received FDA clearance: the Flow FL-100, a headset delivering gentle electrical stimulation to the brain. This device provides an alternative for individuals seeking relief without immediately resorting to medication, offering a new avenue for managing mood disorders.
A Growing Need for Alternative Treatments
Depression affects millions, and while traditional methods like medication and therapy are effective for some, many struggle with side effects or incomplete symptom relief. The FL-100 addresses this gap by offering a non-invasive option with fewer systemic risks. The device’s approval highlights a broader trend: an increasing demand for accessible, at-home mental health solutions.
How the FL-100 Works
The FL-100 uses transcranial direct current stimulation (tDCS), applying a mild electrical current (0.5–2 milliamperes) via scalp electrodes. This stimulates the prefrontal cortex, a brain region often underactive in people with depression. The treatment involves 30-minute sessions five times a week for the first three weeks, then three times a week for seven more.
Clinical trials show significant efficacy : nearly half (45%) of participants using the device achieved remission, compared to 22% in the placebo group. Improvements were noted in mood, energy, sleep, concentration, and anxiety. This makes it roughly twice as effective as the placebo, demonstrating measurable clinical benefit.
Minimizing Side Effects
Unlike many antidepressants, the FL-100 avoids common systemic side effects like weight gain or sexual dysfunction. Reported side effects are minimal: mild tingling, brief skin irritation, or headaches. Serious issues, such as skin burns, are rare and linked to improper use (reusing electrodes or allowing them to dry out).
Best Candidates and Future Accessibility
The device appears most effective for individuals earlier in their treatment journey, whose brains are more adaptable. It can also supplement existing antidepressant treatment for those feeling “stuck”.
The cost and insurance coverage remain uncertain at launch. Flow Neuroscience is currently negotiating with insurers for broader reimbursement, though widespread coverage is unlikely in the short term. The company expects updates on this front by early next year.
The FL-100 represents a significant step toward accessible, non-pharmacological depression treatment. By targeting brain activity directly, it offers a safe, convenient option for many who struggle with traditional methods.

















