Do Prill Beads Work? An Honest Look at the Evidence

Prill beads have built up a loyal following in Australia — but do they actually work? The honest answer is: yes, for some things, and no for others. Here’s a clear-eyed look at what the evidence supports.

Browse our magnesium prill beads or read our related guides: What Are Prill Beads? and Do Prill Beads Remove Fluoride?

What Prill Beads Do Well

These are the effects that are measurable and consistently reported:

• Raise water pH — prill beads reliably raise the pH of water to around 7.4–8.0. This is verifiable with a pH meter or pH drops.
• Add magnesium — magnesium oxide slowly releases magnesium ions into the water. Magnesium is an essential mineral involved in over 300 enzymatic processes in the body, and many Australians don’t get enough from diet alone.
• Improve taste — most users notice a softer, smoother taste compared to straight tap water. This is one of the most consistently reported benefits.
• Reduce surface tension — measurable with a surface tension meter. Whether this translates to meaningfully improved cellular hydration in humans is less established.
• Long lifespan — because magnesium oxide doesn’t dissolve, prill beads last 12–24 months of regular use. They’re a genuinely cost-effective option compared to buying bottled alkaline water.

What Prill Beads Don’t Do

It’s important to be clear about this:

• They don’t filter water — prill beads don’t remove chlorine, fluoride, bacteria, heavy metals, or other contaminants. Don’t use them as a substitute for a proper water filter.
• They don’t reliably remove fluoride — some studies suggest a modest reduction (~31%) over large volumes, but this is not comprehensive fluoride removal. For fluoride removal, you need an RO system or water distiller.
• Claims about "restructured" or "energised" water — these concepts aren’t supported by peer-reviewed science. The measurable benefits (pH, magnesium, surface tension) are real; the more esoteric claims are not.

The Best Way to Use Prill Beads

Prill beads work best as a complement to a proper water filtration system, not a replacement for one. The ideal setup:

1. Filter your water first with a benchtop filter or RO system to remove contaminants.
2. Add prill beads to the filtered water to raise pH, add magnesium, and improve taste.

This gives you clean, contaminant-free water with improved mineralisation and taste — the best of both approaches.

How to Make Prill Water

1. Rinse the bag of prill beads under running water before first use.
2. Place the bag in a glass or ceramic container (up to 5 litres).
3. Fill with drinking water and leave for 24 hours before first use.
4. Drink one-third to one-half of the water and refill — the beads will treat the new water within a few hours.
5. Store away from direct sunlight.

Frequently Asked Questions