Oral Health

Whitening toothpaste lifts surface stains — but not all of them do it safely. Here's how whitening really works, whether it wears down enamel, and how to choose an enamel-safe, remineralising formula in Australia.

Charcoal toothpaste does NOT bleach your teeth - it abrades them, scrubbing off surface stain and enamel with it, and enamel never grows back. Published dental reviews found the whitening, detox and antibacterial claims unsupported, and many charcoal pastes drop fluoride entirely.

Whitening toothpaste works on one thing only: extrinsic stain sitting on the surface of your enamel. It does NOT bleach your teeth or change their intrinsic colour - and the three mechanisms it uses (abrasion, chemical stain dissolution and blue covarine optics) are not equally safe.

The front of a toothpaste pack is an advertisement; the back is the product. Here is how to decode the ingredients panel - fluoride ppm, active agents like aluminium lactate and chlorhexidine, RDA abrasivity, SLS - and why the marketing words on the front have no regulated meaning in Australia.