Calcium Peroxide in a whitening toothpaste

Hi all,

I have encountered some discrepancies in using Calcium Peroxide in the whitening toothpaste. According to an EU regulation, there is a limitation in using Hydrogen Peroxide. There should be a maximum of 0.1 % present or released. I would like to use as much Calcium Peroxide as possible. Is it approx. 0.2 % or could I use more? I mean my supplier recommended me 2 - 4 %. It made me confused.

Thank you.

Comments

  • Bill_TogeBill_Toge Member, Professional Chemist
    the limit for peroxide in oral care cosmetics is 0.1% w/w as hydrogen peroxide, as per Annex III/12 of the regulations

    so for calcium peroxide, the limit would be 0.1% × (72 g/mol ÷ 34 g/mol) = 0.21%

    if you want to use more, you'd have to look into getting your product made and sold as a medicine

    UK based formulation chemist. Strongest subjects: hair styling, hair bleaches, hair dyes (oxidative and non-oxidative) I know some stuff about: EU regulations, emulsions (O/W and W/O), toothpaste, mouthwash, shampoos, other toiletries
  • Regulation: What @Bill_Toge said.  I am however very sceptical to that 0,2% Calcium Peroxide has any effect at all considering the "real" toothwhitening products contain up to 22% Carbamide peroxide and should be left-on a couple of hours.
  • Bill_TogeBill_Toge Member, Professional Chemist
    having reviewed the regulation in question, I must clarify that my statements above only apply to products for sale to the general public

    as of July 2013, you can use higher levels (up to 6% as hydrogen peroxide), but the product must only be sold to dental practitioners, and the first use must be supervised by said practitioner
    UK based formulation chemist. Strongest subjects: hair styling, hair bleaches, hair dyes (oxidative and non-oxidative) I know some stuff about: EU regulations, emulsions (O/W and W/O), toothpaste, mouthwash, shampoos, other toiletries
  • Thank you for your comments. Our customer is Dental clinic so it is possible that I can use this higher level of the Calcium Peroxide. I will check it.
Sign In or Register to comment.