Benefits of Magnesium Prill Beads: What They Can (and Can’t) Do for Your Health

Magnesium prill beads are one of the simplest ways to improve your daily drinking water — raising pH, adding magnesium, and improving taste without any ongoing filter costs. Here’s an honest look at what they actually do for your health, and what to realistically expect.

Browse our magnesium prill beads or read our related guides: Do Prill Beads Work? and Can Prill Beads Be Used in Tap Water?

What Are Magnesium Prill Beads?

Prill beads are small ceramic-like pellets made from magnesium oxide — derived from naturally occurring magnesium salts found deep underground. They’re fired at high temperatures to form hard, insoluble pellets that don’t dissolve in water. Place them in a glass or ceramic container with water, and they slowly release magnesium ions, raising the water’s pH and improving its mineral content.

They last 12–24 months of regular use — making them a genuinely cost-effective alternative to buying bottled alkaline water.

Evidence-Supported Benefits

Improved Magnesium Intake

Magnesium is involved in over 300 enzymatic processes in the body — including energy production, muscle function, nerve signalling, and sleep regulation. Many Australians don’t get adequate magnesium from diet alone. Prill water provides a gentle, ongoing source of dietary magnesium.

Mildly Alkaline Water

Prill beads reliably raise water pH to around 7.4–8.0. While the body tightly regulates its own pH regardless of what you drink, many people find mildly alkaline water more pleasant to drink — which can support better daily hydration habits.

Improved Taste and Drinkability

This is the most consistently reported benefit. Water treated with prill beads has a noticeably softer, smoother taste that most people prefer to straight tap water. If better-tasting water means you drink more of it, that’s a genuine health benefit.

Reduced Surface Tension

Prill water has measurably lower surface tension than untreated water. Whether this translates to meaningfully improved cellular hydration in humans is less established by clinical research, but it’s a real, measurable physical change.

Important: What Prill Beads Don’t Do

Prill beads are not a water filter. They don’t remove chlorine, fluoride, bacteria, heavy metals, or other contaminants from tap water. For comprehensive water filtration, use them alongside a benchtop water filter or reverse osmosis system. The combination gives you clean, contaminant-free water with improved pH and mineralisation.

How to Make Prill Water

1. Rinse the bag of prill beads under cold running water for 3–5 minutes 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 to prevent algae growth.

Prill water can also be used for cooking, watering plants, soaking fruit and vegetables, and adding to a humidifier.

Frequently Asked Questions