There are over 3,000 studies on light therapy.   We recommend the NIH website for controlled, peer reviewed and published studies to get what may be the best pure science.  Manufacturer based studies are frequently skewed to the biases of the manufacturer and the products they sell.

Below are studies found on the NIH website linked to specific conditions.

When you click the links below you will be taken to supporting research for that condition on the National Institute of Health website.  The righthand sidebar on the NIH website shares similar studies for that condition.   To go deeper into research on a specific condition you can either click onto similar studies or perform a search on the NIH site search bar at the top of the page.  These are medical studies with terminology that can be difficult for most.   If you are not familiar with medical terms, you might choose to read the Conclusion at the bottom of each page first.