carbonic acid absorption through skin significantly increases blood flow to the arms
Cutaneous blood flow at the immersed forearm was significantly greater during CO₂-water immersion than freshwater immersion (P=0.006), demonstrating peripheral vasodilatation induced by transdermal CO₂ absorption.
What this means for you
Better circulation to your limbs means more oxygen and nutrients reaching your muscles and skin. Most people notice this as warmth, reduced tension, and a sense of ease in their hands and arms — the kind of peripheral blood flow that supports recovery and everyday comfort.
The published research
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.