What is the RDA of One+?
One+ publishes a Relative Dentin Abrasivity value of 62. RDA is a standardized laboratory comparison against a reference abrasive; it is not a percentage and not a whitening score.
Read the number, not a promise.
Low-abrasive toothpaste searches usually lead to RDA. One+ publishes an RDA of 62, giving shoppers a concrete lab value instead of words like “gentle” alone.
That number still needs context: RDA is not a clinical wear forecast, and it does not replace advice for exposed dentin, erosion, restorations, or aggressive brushing.
Does a lower number guarantee less wear?
No. The ADA cautions against using values below 250 to rank clinical safety. Brush pressure, bristles, frequency, acids, exposed dentin, and the full formula also matter.
Is low-abrasive the same as low-foam?
No. RDA measures dentin abrasion in a lab. Foam describes surfactant behavior. One+ publishes RDA 62 and is lower-foam because it uses no SLS.
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One+ with a published RDA of 62
A 10% nano + micro hydroxyapatite toothpaste with RDA, pH, fluoride, ingredient count, and tube size disclosed.
01 What does RDA 62 mean?
It means One+ produced a value of 62 in the standardized Relative Dentin Abrasivity laboratory method. The number compares dentin abrasion with a reference material assigned a value of 100.
02 Is an RDA of 62 safe for everyone?
No single RDA number can answer that. The ADA says values at or below 250 should not be used quantitatively to rank clinical safety. Ask a dentist about exposed roots, active erosion, restorations, or unusual wear.
03 Does RDA measure enamel abrasion?
No. RDA stands for Relative Dentin Abrasivity and uses dentin. Relative Enamel Abrasivity is a different measurement, and an RDA number should not be presented as an enamel result.
04 Is low-abrasive toothpaste a whitening toothpaste?
Not automatically. One+ contains no hydrogen peroxide or carbamide peroxide and is not intended to bleach underlying tooth color. Abrasivity and bleaching are separate formula questions.
05 Do low foam and low RDA mean the same thing?
No. Foam comes mainly from surfactants; RDA comes from a laboratory abrasion method. One+ is SLS-free and lower-foam, and it separately publishes RDA 62.