For me any of the Alberto VO5 conditioners that have low to no protein in them. My favorite is the Tea Therapy because it is the only one (I believe) with zero protein in it. My hair can tolerate some of the others with protein low on the ingredients list but I can't use every week or my hair will start to get dry and stiff due to protein sensitivity.
Me Fascina El Pelo

Low Porosity; Medium Strands; Dense