I will try to infuse Indian herbs, and use the infusion as the water part in home made shampoo.

The questions is:
- How much should I take? I guess the risk is getting to little. I think that if nobody has an idea, I will take a little bit less than I do when IHW, and multiply with the amount of washes the shampoo should last for.
- Will the herbs do their job on my scalp, if they just sit there for 5 minutes?

I am thinking about using neem, brahmi, tulsi and shikakai.
Maybe the shampoo could be thickened with methi instead of guar gum..?

If using shikakai, maybe the amount of decyl glucose can be lowered, but it is already low (about 1/3 of what is used of SL(S)S in regular shampoos).

What are your thoughts? Could this be good? Have anyone tried?