This is a good deal for anyone that buys Redken products. They are great quality.
It seems you can present at any Redken salon - find them here: http://mobile.where2getit.com/redkenau/
It's stocked at Price Attack, Hairhouse Warehouse etc which advertise saying their prices are cheaper but I have never actually compared. Would be good to find a deal that could be stacked!
Revival Lounge in Brisbane is selling Redken for 25% off if you buy 2. I imagine you could stack because one offer is from the salon and one from redken?
http://www.therevivallounge.com.au/#!specials/csyu