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[BUY 2, FREE 2] Colgate Optic White Vitamin C 25g x2 + Colgate Max White Charcoal Toothbrush The Vitamin C you love in your skincare, now in your new go-to toothpaste! Introducing Colgate Optic White Vitamin C, designed with 95% High Purity Vitamin C**, clinically proven to remove 7 years of stains in as early as 7 days. ^With regular twice daily brushing vs. Colgate whitening toothpaste without Vitamin C. Refers to the equivalent of 7 years of extrinsic stains calculated from a cross-sectional study. Results may vary **Refers to Sodium Ascorbyl Phosphate • Clinically Proven To Remove 7 Years Of Stains In As Early As 7 Days^ • Penetrates The Enamel To Fight Deep Stains • Reduces teeth yellowness* • 8X Stain Removal after 1 week^ ^With twice daily brushing vs. Colgate whitening toothpaste without Vitamin C. Refers to the equivalent of 7 years of extrinsic stains calculated from a cross-sectional study. Results may vary *Within the enamel; yellowness due to extrinsic stains only based on lab tests, with regular twice daily use; results may vary