Red light therapy, also known as low-level light therapy (LLLT), has many potential benefits, including:

• Skin health - Red light therapy can help with skin conditions like acne, rosacea, eczema, and sun damage. It can also reduce the appearance of wrinkles, fine lines, and age spots. 
• Wound healing - Red light therapy can help wounds heal by reducing inflammation and stimulating the formation of new blood vessels. 
• Hair growth - Red light therapy can help with hair growth in people with androgenetic alopecia. 
• Pain relief - Red light therapy can help reduce pain for people with conditions like osteoarthritis, fibromyalgia, and neck pain. 
• Sleep improvement - Red light at night may help improve sleep. 

Red light therapy increases the production of mitochondria, cells' energy sources. This improves cell function and repair.