I've never tried Jessicurl. I've used the Mixed Chicks leave-in and did not like it much. It has protein pretty high on the ingredients list, and even though my hair likes protein it doesn't seem to like other stuff in Mixed Chicks. It also has methylparaben in it in case you avoid parabens.
Formerly Urbancurl.
Medium-high density, fine-medium, low-normal porosity, 3b/c, permanent color.
CG, no heat, combs, brushes, parabens.
Fall/Winter HG=Alba Botanica Soft Hold Style Cream.
Spring/Summer HG=MGA Sculpting Gel
Current fave LI=Madre Labs Made by Nature for Baby Conditioner.
Limit oils, butters, glycerin.