.99 Colgate Mouthwash At CVS!! September 30, 2018 Unadvertised Deal At CVS Colgate Mouthwash Only .99!! Select Colgate Mouthwash $3.99 Buy 1 Get $2 ECB Buy 1 Use 1/1 SS 9/30 Pay $2.99 Get $2 ECB Final Price. 99 Limit 2 Happy Savings!!