Clay abrasiveness

Hello all. I am a newbie in here. I am trying to formulate a toothpaste. I am thinking of using bentonite clay in the toothpaste. Do you have any idea on abrasiveness of bentonite clay? Can it be harmful to enamel on the tooth? How can you compare with amorphous silica in terms of abrasiveness?

Comments

  • Hi @rewalker clay is a popular choice in the organic sector for oral care. However, I am just thinking it may turn your product poo brown. Could you wake up to that each morning. Kaolin clay can also be used. I would try it out yourself and see if it works. There are many other types of abrasives if you want to keep your toothpaste more like what we are used to. Also the clay you buy may not have the correct nano-size. I would ask about that before you buy it. I am under the impression that the size is 20uM just make sure  it is around that size. Hope this helps
    Dr. Catherine Pratt
    (B.Sc with HONS I , Ph.D Analytical/Organic Chem and Microbiology), Cosmetic Chemistry IPCS)
  • Bentonite! So alkaline that your mouth would explode.
    Design of anti-aging creams, gels, and serums; shampoos; and therapeutic cosmetics. In-house label and box design capability.
  • @Belassi toothpaste generally has a pH of around 8 anyway 
    Dr. Catherine Pratt
    (B.Sc with HONS I , Ph.D Analytical/Organic Chem and Microbiology), Cosmetic Chemistry IPCS)
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