I found L’Oreal Advanced Haircare shampoo on clearance at Target. Use a $4.00/2 printable manufacturer coupon with the clearance price to get each bottle of shampoo for just $1.38! Keep in mind that prices and inventory may vary by store.

Use one $4.00/2 LOreal Paris Advanced Products (coupons.com)

Final Price: $1.38 each, when you buy 2