In Your 30s
Collagen and elastin begin to deteriorate in your 30s, so "add a richer eye cream to your regimen to help maintain elasticity," says Dr. Graf. She recommends using something with caffeine and antioxidantswhich fend off collagen-devouring free radicals—to tighten skin. If the area around your eyes is prone to irritation, look for a soothing serum with chamomile to calm inflammation throughout the day.
Aveeno Anti-Fatigue Eye Treatment, $12; drugstore.com
Revaléskin Eye Therapy, $90; revaleskin.com