Reply To: Red or blue? for my acne Home › Forums › Red Light Therapy › Red or blue? for my acne › Reply To: Red or blue? for my acne October 7, 2020 at 7:14 pm #951 NIKKIGALParticipant I am sorry I am kind of lost. Are we talking about an LED red/blue bulb light or the face mask that is intended for the face?