Check out some of Crests other whitening toothpastes which also have coupons. This claims to remove 90% while another claims to remove 100% "Crest 3D White Brilliance Luminous Purple Teeth Whitening Toothpaste" which is a three pack for $16.91 after applying $10 off coupon.
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https://www.amazon.com/Crest-Brilliance-Toothpaste-Anticavity-Prevention/dp/B0CPKQVF79/
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