Indications
Primary Indications
Seasonal affective disorderDelayed sleep phase syndromeNon-seasonal depression (adjunctive)Shift-work disorderInsomnia related to circadian misalignment
A non-invasive phototherapy technique that uses high-intensity, full-spectrum or white light to regulate circadian rhythms and treat mood disorders, especially seasonal affective disorder (SAD).
Reviewed by the HeyPsych Medical Review Board · Reviewed November 24, 2025
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Used for
Also prescribed for (off-label)
Common use
Bright Light Therapy is used for Seasonal affective disorder. The full guide below has the details.
About Seasonal affective disorderHow many people in 100 notice each one in clinical studies. Many early side effects fade within a few weeks.
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Considered safe; may help with perinatal depression.
General information, not advice for your case. Talk it through with your prescriber or pharmacist.
Hypomania or mania in bipolar disorder
Thoughts of suicide? Call or text 988, any time.
Everything we know about Bright Light Therapy, section by section.
15 chapters · about 15 min to read it all. Open any one.
Frequency: Daily during treatment period
Duration: Typically 2–4 weeks for symptom improvement; maintenance as needed during at-risk seasons
Total Treatment Time: Variable; often seasonal use for 1–4 months
Ensure device placement, comfort, and safe eye positioning.
Passive activity (reading, eating breakfast, working) while facing the light source.
Normal daily activities; monitor for mild side effects.
typical session cost: $0–$10 (device amortized)
total treatment cost: $50–$250 for quality device
insurance coverage: Typically not covered; may be covered for SAD with documentation
cost effectiveness: High cost-effectiveness given device reusability and non-invasive nature
Efficacy depends on adherence, timing, and light intensity; may be less effective in severe depression without adjunctive therapy.
This treatment information is for educational purposes only. Treatment decisions should be made in consultation with qualified healthcare professionals based on individual circumstances, symptoms, and medical history. Do not attempt treatment without professional guidance.
Thinking about Bright Light Therapy? A prescriber can tell you if it fits.
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