... photorejuvenation equipment 1. What is PDT.PDT(Photodynamic Therapy) This new technology is systemic administation of a ... professional.2. ApplicationA)Red Light EffectAnti-aging, skin rejuvenation, skin tighting. promote collagen. Whiten, skin lifting., Removal all kinds ... size, and short treatment time applicable for any characteristics of skin,8.Light sources arrayed in matrix to accommodate human ...