Fantastic and incredibly convenient product that is perfect for CO₂-enriched foot baths, hand baths, and facial baths. I noticed improved circulation and, for the first time in years, my hands and feet have started to feel warm again. 🤩 I noticed a significant difference after just one treatment. It also works great for full-body baths in the bathtub. Just 10 minutes is enough to feel noticeably more relaxed, and the sense of calm afterwards is amazing and lasts for hours. I can highly recommend Cardistone!