IQ Complex increases microcirculation in the skin without a reddening and warming sensation while helping give Oxygen to the skin Xtreme Tanning Catalyst, better known as XTC, creates a synergistic fusion of energy, vitamins, proteins and Oxygen, encouraging your skin to perform at its optimal efficiency CuO2 & TRF2000 combine with XTC to supply copper peptides and increase oxygen to help energize skin, increase hydration, and amplify color