Shnoop via eBay offers the Scalpicin 2-in-1 Salicylic Acid 1.5-oz. Liquid Dandruff Treatment 4-Pack for $8 with free shipping. That's tied with our mention from last week as the lowest total price we've seen for this quantity. (It's a current low by $11.) This formula purports to control itching, irritation, redness, flaking, and scaling due to dandruff.
Note: Each pack has an expiration date of March 31, 2015.