Aromatherapy grade essential oils with high levels of terpenes, primarily monoterpene alcohols (also referred to as "terps"), help make henna stains darker. Adding a small amount to your paste after dye release will allow you to get the darkest stain possible.
Generally, the ratio of essential oils to henna paste is 10ml - 30ml essential oil to 100g henna powder.
In addition to henna paste, these oils can be used for aromatherapy, lotions, soaps, candles and more.
Please note: All essential oils are highly complex chemical compounds and should be handled with care. Use caution when handling and perform patch tests if unsure of allergies. If you are pregnant, check with your doctor before use. For external use only.