It’s hard to say how much oil. The longer and thicker your hair is, the more oil you’ll need. I apply olive oil to my hair (massage the scalp with it…and also apply it to my hair…especially the ends…to avoid getting slip-ends). The oil is in a bottle with a nozzle…so it’s hard to see the quantity that is applied.
I’ve been washing my hair with Meera’s Herbal hair powder (contains shikakai, reetha, and other herbs) for the past few weeks…and so far it’s been great. My hair doesn’t fall much during the shampooing…and it looks healthier. I’m trying to grow it out…to my waist at least. It’s almost half way down my back now. Back around Jan of last year…I had gotten a pixie cut…so I’m glad it’s finally grown out.