I realise it's not a leave-in, but several other conditioners are not, and I still use them for that purpose... and they generally work better for me than any conditioners specifically marketed as LIs. I decided to try the TJTTT based on how it felt detangling my hair (and the fact that it retained moisture twisting my whole head without me having to spritz, which I very rarely experience), but now I know not to leave it in. It's all about trial and error.
Products in current rotation:
Terressentials Pure Earth Mud Wash; Elucence MBC (now really just for cowashing, leg shaving or emergencies); Curl Junkie: Repair Me, Deep Fix, Curl Rehab; AOHSR (retiring); Oyin Handmade: Honey Hemp, Hair Dew, J&B; Qhemet Biologics: BRBC (retiring- prefer Oyin HD), AOHC, OHHB; Jojoba Oil for scalp; Castor Oil or Shea butter to seal; Henna & Ayurvedic pastes when I can be bothered.
Still searching for the perfect stylers, but loving CJ CIAB over everything so far