Clockwork proof

Don't trust us.Check us.

Anyone can print "nano-hydroxyapatite" on a tube. What matters is which one, how it's made, and whether you can verify it. So here's everything, from the ingredient's identity to the lab results of the exact lot in our toothpaste.

01 · The ingredient

nanoXIM•CarePaste, by FLUIDINOVA

Ingredient name (INCI)
Hydroxyapatite (nano)
Made by
FLUIDINOVA, S.A. · Maia, Portugal
EU REACH registration
01-2119490075-38-0021
Origin
No animal source
Quality system
ISO 9001:2015 (SGS)
Also
Vegan · Halal · Kosher · NATRUE-approved

02 · The particle

Shape and size are what make it safe

nanoXIM•CarePasteEU safety condition
Shape Rod-shaped Rod-shaped, not needle-shaped
Length (median) 27.6 nm Nano form, as assessed
Aspect ratio below 3 95.8% of particles At least 95.8%
Maximum aspect ratio 4.9 Not exceeding 4.9
Coating None Not coated or surface-modified

The EU's Scientific Committee on Consumer Safety assessed this material as safe for oral care (Opinion SCCS/1648/22), and the EU wrote its conditions into law (Regulation 2024/858, Annex III entry 372). Source: FLUIDINOVA particle statement and Safety Data Sheet.

03 · The lot in your tube

Tested, batch by batch

Lot 50410226091 · Made 04 Mar 2026
Conforms Identity confirmed by X-ray diffractionSpec: conforms to structure
< 12 ppm Total heavy metals (as lead)Limit: ≤ 20 ppm
< 3 cfu/g Bacteria, yeast & mouldLimit: ≤ 100 cfu/g
10.5 pH at 25 °CSpec: 10.0 ± 0.5

Results from FLUIDINOVA's Certificate of Analysis for the raw material lot used in our current batch. Microbial testing to ISO 11737-1. Verified by FLUIDINOVA Quality Control.

04 · Read it yourself

The documents