Our Study

HydroZen conducted an in-house case study with 20 participants of different ages and health backgrounds. Each participant experienced a single one-hour session in our Molecular Hydrogen-infused bath. The results were significant — biomarker testing showed measurable improvements across every participant. This research demonstrates that just one HydroZen bath can elevate wellness, support recovery, and help restore natural balance across diverse age groups and health profiles.

The HydroZen system and its associated wellness technologies have not been evaluated by the U.S. Food and Drug Administration. The HydroZen bath is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.

Results & Insights

Aging is not simply the passing of time- it’s the gradual accumulation of stress and the loss of balance in the body’s regulatory systems.

Biological Age

Our study showed reductions in measured biological age across all 20 subjects, with older subjects showing larger reductions.

Average Reduction (-) 8 years

Largest Reduction (-) 21 years

Aging is something we can slow. With HydroZen baths, the body can feel younger and recover faster.

Stress Response & Heart Rate Variability

When the nervous system is balanced, the body naturally shifts into a state of calm. This reduces stress and allows for deeper relaxation and improved regulation. The result is less stress, better sleep, faster recovery, and a greater sense of well being

Participants in our study showed improved measurements in the following 3 key biomarkers related to stress regulation:

A measure of short-term heart rate variability, reflecting recovery & relaxation. Higher RMSSD correlates to better stress recovery & nervous system balance.

RMSSD

75% Increase

Average

234% Increase

Best Result

Represents the “rest & digest” branch of the nervous system. A strong increase shows the body shifting into deep relaxation and repair mode.

Parasympathetic Tone

160% Increase

Average

700% Increase

Best Result

A measure of how well the two sides of the nervous system work together. Higher scores mean your body manages stress better and can recover faster.

Z (Auto- Correlation) Index

269% Increase

Average

1057% Increase

HydroZen Baths can put the body into a state of deep relaxation, balance the nervous system, and improve your resilience and recovery.

Best Result