A-For 100g of henna, you're gonna need 100 g of amla to preserve curls. In addition to 1 TBS of brahmi, I add bhringraj, aloe vera, neem and powdered clove buds. If I'm going to add EOs, they will be terps; peppermint oil is not a terp, though it is good for dry hair. I'll add Shea Moisture's Raw Shea Butter Conditioner as a gloss & pure apple juice as a full henna treatment. For the oil, I add 4 TBS total: safflower, Bacuri butter, Brazil nut and Caiaue oil. 2 TBS of Manuka honey is a must.