I love henna glosses: Here is my recipe:
Must have:
Moisturizing conditioner
Henna
essential oils (Peppermint, rosemary, tea tree)
Shea butter or olive oil
Optional:
Other Indian powders (Amla, Neem, the one that starts with a B)
Fenugreek (I really love fenugreek. Sometimes I don't have time to prep it.)
Aloe powder or juice