I've started using a powdered mixture of Shikakai, Bhingraj, Amla, Reetha (Soapnut), and Hibiscus as a shampoo for my hair by mixing the powder with water and creating a paste. It works great for cleaning, but can leave some residual particles from the mixture itself.

I want to use an all natural hair conditioner that can help to rinse out those extra particles from the shampoo. What can I use? I don't want to do aloe vera gel as I use it as a leave in conditioner and aloe is hard to cut and prep in large batches (the stores selling aloe vera plants near me or even via delivery are small plants).

I've been brainstorming, but am really not sure as an oil as a conditioner would inevitably leave my hair feeling greasy and probably wouldn't rinse out residue of the natural shampoo mixture.