Amazon has 3-Pack 3.4-Oz Sensodyne Pronamel Clinical Enamel Strengthening Toothpaste, Whitening Action (Citrus Mint) for $19.41 - 25% when you 'clip' the coupon on product page - 5% when you check out via Subscribe & Save = $13.59. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

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Product Details:

• 3x stronger enamel and 24/7 enamel protection.
• Backed by 17 years of enamel science and helps to protect teeth for life.
• Enamel safe, advanced whitening system for 40% greater whitening action.
• Repairs 66% of micro-damage in acid softened enamel.
• Enjoy the gentle foaming and citrus fresh mint flavor that leaves a long-lasting clean feeling.