Negative ions help break down large water molecule clusters into smaller ones, which may enhance absorption and hydration at a cellular level.
This process is sometimes called "water activation," making water "softer" and more bioavailable.
Negative ions can inhibit the growth of bacteria, algae, and fungi in water, reducing contamination risks.
This is useful in storage tanks, filters, and even pet water bowls to keep water cleaner for longer.
Some negative ion balls release beneficial minerals (e.g., magnesium, calcium) into the water, which can improve taste and provide health benefits.
They may also help slightly alkalize water, though the effect is usually mild.
While not a replacement for advanced filtration (like RO or activated carbon), negative ions can help neutralize some free radicals and pollutants by binding to them.