Our award-winning and most comprehensive serum features our RF TriEnergy Complex that energizes millions of surface skin cells by 200% to see stronger, healthier, and more resilient skin at every level. This powerful anti-aging serum helps you achieve visible results when used on its own and even better results when used with one of R+F's Multi Med Regimens. Packaged in an eco-friendly, refillable glass bottle. Keep the outer glass container for your refill.