The REVIAN RED System for hair regrowth is the most innovative, best scalp science renewal system on the market for men and women. Treat your hair loss on your schedule, in the comfort of your home while doing what you love. Be part of the next generation of personal, over-the-counter light-based medical solutions to your hair loss problems. No prescription is required and our money back guarantee gives you peace of mind that you can try our product for six months and if you don’t see results, we will take it back*.