What’s PAP?
First thing first, the INCI name of PAP is phthalimido-peroxy-caproic acid.
PAP is a milky white stable peracid exploiting bleaching and disinfecting performance in mild conditions.
PAP we use is imported from Solvay, PAP is actually a solution, this solution is called EURECO HC L17 and contains 16.7-17.3% PAP. Please click to download the English product data sheet and Chinese MSDS for this solution (please forgive us for only having the Chinese MSDS here, if you want to see the English MSDS, please let me know and I will translate it for you).
Who prefers PAP+ Toothpaste?
We have been researching PAP formula toothpaste for years, and PAP is currently used in China mainly for whitening strips and whitening gel pens.
Clients who are willing to pay extra prefer to use PAP as the whitening ingredient in their toothpaste, while most clients use HP (hydrogen peroxide) or urea peroxide as the whitening ingredient in their toothpaste. PAP has the advantage of stability and safety over HP or urea peroxide.
We know that HP or urea peroxide is unstable and easily oxidized, so strong acids, such as phosphoric acid, are usually added to toothpaste to stabilize the toothpaste formula, but strong acids can cause demineralization and make teeth brittle.
In addition, the tube nozzle should not be sealed with a foil, because oxygen is produced during the oxidation of HP or urea peroxide, which can lead to swelling once the tube nozzle is sealed with a foil. It is common for Colgate toothpaste containing HP to have no foils on the nozzles.
And, PAP is a readily biodegradable non-peroxidic chemical, yielding zero environmental threat.
How much PAP% is usually contained in toothpaste?
In terms of comparative bleaching or whitening effectiveness, 5% PAP is equivalent to approx 3% HP, and 1% PAP is equivalent to 0.6% HP. The bleaching effect of PAP occurs faster and more consistently than HP.
Many kinds of toothpaste on the market contain only 0.01% PAP, which is often used only as a marketing concept. If a toothpaste contains 1% PAP, it has a milky appearance and is suggested to be silica-based. If the toothpaste with PAP appears clear, then the PAP content is probably less than 1%.
Assuming that EURECO HC L17 contains 17% PAP, when toothpaste contains 1% PAP, 1%/17% = 5.88%, which means we must add at least 5.88% EURECO HC L17 to the toothpaste.
We are so confident in our toothpaste quality and our professional chemists used to work in the Colgate Guangzhou factory, which is worth forwarding some of your toothpaste projects to us.
Interested in PAP+ toothpaste samples?
Would you be interested if we sent you few samples of toothpaste containing PAP to test? Please feel free to contact us.
