Did a henna melt with added indigo from Njoi on etsy. Didn't leave it in long enough. Some of my grays have reddish brown highlights, but the color didn't take at all to the gray in the front and the edges. Strange. Without the indigo those hairs were bright orange. Anyway, I guess I will do it again at the end of month and leave it for 4 hours instead of 1.
My hair was soft after using the melt.