• Katherine l Meacham May 23, 2016 at 5:51 pm

    i got this toothpaste in a 5 dollar walmart box of samples have been using for awile but no difference is found !

  • Barry Stevens January 10, 2018 at 11:14 am

    I have been using a competitive whitening toothpaste with marginal results at best. Visited my Mother-In-Law and realized I forgot my toothpaste. She was using Colgate’s “Optic White – Whiter Teeth in 1 Week Sparkling White” toothpaste. So reluctantly I used it. My first sign it was working was with my night tooth guard, which I coat after removal in the morning. Within a few days the yellowed acrylic guard actually turned frosty white. Then yes, my teeth actually got noticeably whiter. I still find this hard to believe. I have a Ph.D. in Chemistry, worked in the medical device industry and highly skeptical of all unsubstantiated claims / advertisements made by manufacturers of miracle drugs and topical aids. Nevertheless, what I was stated above is my actual experience, truthful and unsolicited.

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