My wife fell down and sprained her ankle , and had touble walking from past few days ,we were using ice packs every night to reduce the swelling ,when we visited my cousin who is also physiotherapist he suggested try and use to Biofrost it will give the effect of ice packs also and help in recovery also,My wife had great results and this helped her a lot in managing everyday relief relief. Roll on is easy to use and apply and that's the biggest advantage.I it Compared to the peers like hoop and Zanskar , initially i thought the price is too low , the quality must not be good. But after using it amazed at the result and effective and got a lesson everything that is cheap in process not necessarily bad in Quality.Really impressed with Biofrost.Even I started using it for neck and shoulder relief after long work hours and could feel relief within minutes. The cooling sensation is strong and long-lasting, and it helps reduce stiffness too. Bonus points for the natural formulation. Definitely repurchasing.