Soreness, mood, immunity, longevity: we grade each popular claim against the actual evidence.
Budget, space, climate, cooling vs. ice, maintenance — decide in order and the right tub picks itself.
The longevity industry runs on hype. Five-thousand-dollar tubs sold on single-study claims. "Detox" promises with no mechanism. Comparison sites that rank whoever pays the most.
We do the opposite: evidence first, buyer-grade detail, and full editorial independence — no sponsored rankings, no paid placements. When the evidence is thin, we say so — plainly.