耐沸騰性水素バブルを含む水素富化水浴が内臓脂肪および皮膚シミに与える影響
This small-scale study (n = 4; two men and two women aged 41–48 years) investigated the effects of daily 10-minute baths in electrolytically generated hydrogen-rich water (dissolved H2: 300–310 μg/L, 41°C) over 1–6 months on skin pigmentation, visceral fat, and metabolic markers. Skin blotches became noticeably smaller and lighter, attributed to reductive modification of melanin and lipofuscin alongside dermal cell renewal. In the two female participants, ultrasonic abdominal imaging showed visceral fat area declining from 47 to 36 cm² and abdominal circumference from 91 to 82 cm. After 6 months, one female subject showed a 16.2% reduction in LDL cholesterol, though fasting blood glucose rose by 13.6%. Stability testing confirmed that dissolved hydrogen (initially 300 μg/L, oxidation-reduction potential −115 mV) was retained at 175–200 μg/L even 24 hours after boiling, demonstrating the durability of the hydrogen bubbles generated by this electrolytic apparatus.
Hydrogen-rich warm water is proposed to reduce skin pigmentation through reductive bleaching of melanin and lipofuscin and acceleration of dermal cell turnover, while oxidative stress attenuation may underlie observed changes in lipid metabolism.
Hydrogen bathing has reports of localized effects, but for systemic hydrogen intake the most efficient route is inhalation. Inhalation carries explosion risk (empirical LFL of 10%; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended).
See also:
https://h2-papers.org/en/papers/31249254