How to Use
How much red light therapy per day?
A starting dose for most at-home red light therapy devices is 5 to 10 minutes per treatment area, once per day at most.
Reviews & guides, page 4
In-depth reviews, comparisons and evidence-based guides to help you get the most from LED light therapy for your skin.

How to Use
A starting dose for most at-home red light therapy devices is 5 to 10 minutes per treatment area, once per day at most.
Beyond the Face
Red light therapy is not an established stand-alone treatment for depression.
How to Use
Red light therapy on the face is a short, device-specific treatment used on clean, dry skin before skincare products.
Safety & Side Effects
Daily red light therapy is usually safe for healthy adults when the device is used exactly as directed, but daily treatment is not right for every device or.
Skin Concerns
Red light therapy is an add-on option for mild inflammatory acne, not a first-line treatment.
Beyond the Face
Red light therapy is a complementary option that may provide modest, short-term relief from arthritis pain and stiffness, especially in knee osteoarthritis.
Beyond the Face
Red light therapy is a promising but unproven treatment for depression.
Beyond the Face
Red light therapy is a non-drug treatment that can modestly improve hair density in some people with hereditary pattern hair loss, also called androgenetic.
Skin Concerns
Red light therapy may help reduce pain and inflammation in some localized conditions, but it is not a proven general treatment for inflammation.
Skin Concerns
Red light therapy is not a proven first-line treatment for melasma. A 2023 review found only nine relevant studies on photobiomodulation and melasma.
Skin Concerns
Red light therapy is a possible add-on for some people with rosacea, but it is not a proven first-line treatment and should not replace.
Skin Concerns
Red light therapy for scars is a possible add-on treatment for some newer surgical, burn and raised scars, not a way to erase scar tissue.