THE DIFFERENCE

What a listing can't tell you in a bullet point.

Amazon gives us nine bullets. We use them for the dose numbers and run out of room before we get to why the mineral forms matter, what's not in the tub, or how we verify the label is accurate. This page is the rest of the argument.

Clean Label

Every ingredient, accounted for.

The full formula is here. If something is in the tub, it's named below.

Sodium chloride Food-grade salt, the main electrolyte you lose in sweat

1000mg sodium

Potassium citrate A clean-tasting, fully soluble form of potassium

250mg potassium

Magnesium citrate A form of magnesium that dissolves fully in water

75mg magnesium

Malic acid Food-grade fruit acid that gives the flavour its bright edge

flavour

Citric acid Food-grade acid that balances the salt

flavour

Gum arabic A plant gum from the acacia tree that helps the flavour carry

texture

Natural flavour Mango and passionfruit, from natural sources

flavour

Steviol glycosides (Reb M) A clean-tasting sweetener from the stevia plant, explained below

sweetener

Red beet powder and beta-carotene Where the colour comes from

colour

Silicon dioxide A small amount of food-grade agent that stops the powder clumping

minimal

NOT IN RAWSTONE

Sugar

Many electrolyte drinks carry several grams of sugar per serve. It adds carbs, raises blood sugar, and does nothing for hydration. Rawstone has none.

Artificial sweeteners

Sucralose, acesulphame potassium and aspartame each have their own debate. We chose not to enter it. There are no synthetic sweetening compounds in the formula.

Artificial flavours

The mango and passionfruit flavour comes from natural sources. The colour comes from red beet powder and beta-carotene.

Mineral Quality

The form matters as much as the dose.

A label that says "250mg potassium" tells you the dose, not the compound it comes in. The compound decides how well it dissolves and how the drink tastes, and it is where a lot of products cut corners.

POTASSIUM

Potassium as citrate

Potassium chloride is the default cheap option, the same compound sold as a table-salt substitute. At the doses an electrolyte powder needs, it tastes like metal.

Potassium citrate is food-grade and clean-tasting. It dissolves properly, mixes well, and doesn't fight the flavour of the drink.

Potassium chloride: metallic, cheap Potassium citrate: what we use

MAGNESIUM

Magnesium as citrate

Magnesium oxide is the cheapest magnesium compound available. It barely dissolves in water, but it costs little, which is exactly why it appears in so many cheaper tubs.

Magnesium citrate dissolves fully in water. It is the form we use, and it makes Rawstone a source of magnesium.

Magnesium oxide: cheap, barely dissolves Magnesium citrate: what we use

Batch Testing

We'll show you the results.

A label is a claim. The only way to know it's accurate is to have someone with no stake in the outcome check it.

Our first batch will be tested by an accredited lab before it ships, rather than checked internally or taken on the manufacturer's word.

The lab issues a test certificate covering heavy metals and microbial safety. We will publish it here so you can check it yourself. If a batch doesn't clear testing, it doesn't ship.

Certificate coming with batch one

Available once the first batch clears testing.

WHAT EACH TEST COVERS

✓ Heavy metals: lead, cadmium, arsenic, mercury
✓ Microbial safety: bacteria, yeast and mould
✓ No undeclared sweeteners

Results are specific to each batch. We won't average across batches or rely on the ingredient suppliers' own testing as a substitute.

READY TO TRY IT

1000mg of sodium. Zero sugar. Tastes good for the salt.

Mango-Passionfruit, launching on Amazon Australia this summer.

Buy on Amazon → See the full product