Hi NaturalinkC! Regarding the cassia, I ordered mine from Welcome - Mystical Henna and ordered a few boxes of the 100g 100% Cassia Obovata powder. I mixed 1 box of cassia, 2 spoons of Hugo Naturals conditioner, 1 spoon of ORS conditioner, oil and water to a cake batter consistency. I didn't even let it sit 15 minutes before applying. I put the mixture in my hair, covered with a plastic cap, let it sit for 2 hours, then washed it out. It gave me
great strength and definition after completing the process. I hope this helps you! Let me know if you havenany further questions!