caution
Calcium Carbonate
Also known as: chalk
A mineral abrasive/base common in natural pastes; technique matters.
01. What it is
What it is
Insoluble calcium salt used as a mild abrasive and bulking agent.
02. Why it’s used
Why it’s used
Mechanical cleaning and natural-mineral positioning.
03. The concern
The concern
Can feel chalky; over-aggressive brushing with any abrasive risks wear.
04. Our take
Our take
Acceptable in well-formulated natural pastes. Pair with a soft brush and light pressure.
05. Found in
Brands we reviewed
These ranked pastes list or rely on this ingredient in the formula we evaluated.
- RiseWell Mineral Toothpaste
Rank #4 · Score 85.8
- Davids Premium Natural Toothpaste / Hydroxi
Rank #5 · Score 85.3
- Wellnesse Whitening Toothpaste
Rank #6 · Score 82.2
- Redmond Earthpaste
Rank #26 · Score 67.4
- Uncle Harry's Natural Toothpaste Remineralizing
Rank #22 · Score 68.5
- Georganics Mineral Toothpaste / Coconut Oil Toothpaste
Rank #20 · Score 69.7
06. Sources
Further reading
Third-party citations, not studies we ran.