It was probably me who brought up the design essentials. Its next to impossible to find, but someone on ebay is selling little bottles of it for $4.99. From what the bottle says, its a miracle product...it did wonders for my hair a long time ago, but this go around Im having a hard time stopping some shedding and breakage so Im trying nexxus emergencee bc I had a coupon for 3.50 off at Ulta. Maybe my hair is immune to it now...lol.
Others on the board have said Joico K pac is a good heavy duty protein
Also Elasta QP breakage control serum seems pretty good and its under $5.
Aubrey GPB seems to work for almost everyone as far as a light protein that u really cant overuse, Ive even heard of some people using it daily as a co wash. I like the idea that u dont have to worry about overdoing it with the Aubrey.
HTH!