CJ Beauticurls Leave In is protein free also. I have never used their line but heard this product was really good. Also I used to buy the more organic conditioners like Aubrey Organics, Nature's Gate, and use these as leave-in's.
*Natural 3C/TWA*
Wash: BS/ACV, KC Come Clean
Conditioner: SM SB Restorative, Yucca & Baobab

Pre-Poo: Oils & Honey Mix
DC: SM Manuka Honey Masque, SM Yucca Masque
PT:
Super Mayo Deep Conditioning Treatment
Styler:
AVG, Oyin Burnt Sugar Pomade
Leave-In: KCKT, SM Yucca Milk
Oil/Sealant: Jojoba,
Avocado, EVCO, EVOO, JBCO