how to make mehndi darker - #24203

I am really concerned about my recent mehndi designs. I remember last time I applied it, it turned out way lighter than I expected. My friend said it's all about the technique, but I can't figure out how to make mehndi darker. I apply the paste, but I feel like I'm missing some important steps or something! Last weekend, I tried to create a beautiful floral pattern for a family function, and everyone loved it, but by the end of the day, the color just faded. I tried wrapping it in plastic after applying it, and I used lemon juice with sugar, but still ended up with a disappointing light shade. Should I be using a certain type of henna or maybe there's a method that makes it more potent? I heard about mixing ingredients like essential oils or something, but I'm not sure what really helps! What are the best ways on how to make mehndi darker? Any tips or tricks would be super appreciated!