Crest Mouthwash Only $0.99! January 28, 2018 Get link Facebook X Pinterest Email Other Apps PharmaChoice has Crest Pro Health and Crest with Scope Mouthwash on sale for $1.99 until January 31. Use the $2 When You Buy 2 Coupon HERE - and get TWO for $1.98. That's $0.99 each!