You might try Garnier Fructis leave in. I use the curl & shine. I understand the sleek & shine is also good. Another relatively inexpensive thing to try is jojoba oil for a DT. I put some on my ends and leave it overnight. It washes out well w/o using a sulfate shampoo, and leaves my hair much softer. There are other oils that you can use, but I'm not sure which ones. I'm sure someone here will chime in about that.
Couple of inches past shoulder length 3A. Shampoo every 3rd or 4th day w/ baby shampoo; Tigi Fashionista conditioner; back to Condition 3-in-1 mousse . Alternate days water rinse, conditioner and mousse.