Have you thought about making your own? The ingredients are pretty common oils and ayruvedic powders. You can get everything on Amazon.
Ricinus Communis Seed Oil, Prunus Amygdalus Dulsis, Acacia Concinna Oil, Bacopa Monniera Oil, Emblica Officianalis Fruit Oil, Azadirachta Indica Seed Oil, Fragrance
aka
Castor Oil, Almond Oil, Shikakai, Brahmi, amla, neem oil
I would just combine the oils and add in powder versions of the Shikakai, Brahmi and amla.
Curlyproverbz has a bunch of videos on how she makes her ayruvedic oils.