I was wondering...
Could it also be the glycerin (6th place) that is my problem?
Today I used a low poo shampoo and that one had a drying effect on my hair as well, and I checked out the ingrediŽnts and that one has glycerin in the 5th place.
That shampoo and the aloe vera conditioner are the only products I have with glycerin in them. (I don't have other product with aloe vera in them I guess)

First 5 ingredients for that shampoo: Aqua, sodium methyl cocoyl taurate, laureth-5 carboxylic acid, cocamidopropyl betaine, glycerin