I say today only, because I don’t see any end dates on the shelf tags for this promotion. Tomorrow’s ad has personal care stuff like Pantene, H&S, and Herbal Essence and says addtional select products, but no further information. Why take a chance?
Use the $2 Garnier shampoo/conditioner coupon from the 8/30 rp on the $2.99 products with the Buy 4 get a $5 Target gift card and you’ll be paying $3.96 and getting back a $5 gift card.  In my case, I bought eight, used four of each coupon, spent $11.92 and got back $10 in gift card – well worth it to me.

Note:  There’s a whole crop of 33% more bonus sizes on the shelf which do not trigger the gift card automatically, but the cashier should be able to just manually generate one.