Reply To: I've been using rubylux for 15 days now, I see improvements! Home › Forums › Red Light Therapy › I've been using rubylux for 15 days now, I see improvements! › Reply To: I've been using rubylux for 15 days now, I see improvements! November 4, 2020 at 10:51 pm #1338 trishnutriParticipant Hi, I think it depends on your skin. If you want, you may also track your progress every week.