Simply Earth Essential Oils June 2021 Recipe Box and Big Bonus Box Review. I can’t wait to start my toxin-free journey at home! Simply Earth has made everything easier by providing everything you need – from the essential oils up to the recipe guides and even the containers! My favorite essential oils were Lemongrass and Mandarin (you can’t go wrong with citrusy scents!). I’m also looking forward to making a citronella candle with the Citronella essential oil – it will be perfect for sitting on my patio on warm summer evenings! I thought starting my toxin-free, essential oil journey might be difficult but Simply Earth made it simple and fun! This box is so worth it – it’s only $39 per month! Such a win!