This highly potent formula combines the most advanced antioxidant complexes with marine enzymes designed to quench free radical assault and protect the skin from environmental damage. The Repair/Protect – 30 Day Emulsion also prevents glycation – the process by which sugar molecules in the cells chemically bond to protein or lipid molecules without the controlled action of an enzyme. Glycation interferes with the functions of the proteins and results in age-related brown spots. This lightweight SPF 30 emulsion can be used as a daily moisturizer.