Hi there –
I recently mixed my own batch of the shampoo with castile soap, peppermint and lavender oil, and water. My castile soap suggests mixing less than 1 oz. of soap with 2 gallons of water! I tried only a little of the soap in the water and oil mix and it does not lather and leaves my hair greasy. I tried adding another squirt of soap to my bottle and shampooed again – still no lather, and my scalp still looks and feels greasy. Should I really be using a 1:1 ratio of castile to water? Seems like a lot (compared to the soap’s recommended use)…?
Other than that, I have very harshly treated/coloured hair, and it works like magic! The ends of my hair feel healthy and silky, and the soap even removed some of my brassy colour.