Target, Vidal Sassoon Salonist, like $1.60 each when you buy 2

My Target has the “Free $5 GC with personal care purchase of $15 or more” signage up in the hair color section.
Bought 2 Vidal Sassoon Salonist at $13.19 each. So I passed the $15 purchase requirement to get a $5GC.
I used one B1G1Free MQ, max value up to $13.99, form PG 9/27, exp. 10/11.
I was happy to find that there is an additional promotion (that I was unaware of) that if you buy 2 Vidal Sassoon Salonist, you will get an extra $5 GC, this was not signed, but it does show up on Target.com.
There were no other items in this transaction for me, so I know the 2 $5 GC came from this deal.
13.19 x2 = 26.38, minus $13.19 MQ, minus $10 (2$5GC) = $3.19 /2 = $1.60 each