Alkaline, hydrogen-rich water is backed by real research — but the Kangen SD501 often produces less than 0.5 ppm H₂, below the therapeutic threshold most studies are based on. This guide examines what the peer-reviewed evidence actually shows, where Kangen machines fall short, and how the numbers compare to alternatives at the same price point.

Enagic sells Kangen water machines exclusively through an 8-tier MLM network, with analysts estimating 30–40% of each machine's price flowing through distributor commissions. This article breaks down how the '1U point system' works, why there's no public price list, and what it means for buyers and anyone considering joining the network.