The red light is a 20 minute session of photo skin rejuvenation using red light technology as a natural, safe and relaxing method of triggering your body to increase its own production of collagen, which in turn smooths and reduces wrinkles to create a more youthful looking appearance. Also great for acne, age spots, broken capillaries, wounds, cuts, scars, sun damage and joint issues. Recommended use of 3 to 4 times a week for 4 to 6 weeks, then 1 to 2 times per week for maintenance.