I recently ordered the six pack Anjou Aromatherapy Essential Oil which have the following scents: (1) tea tree, (2) lemongrass, (3) peppermint, (4) eucalyptus, (5) lavender and (6) sweet orange that are 0.33 fl oz (10 ml). The packaging was very well and they come in a very cute black box that list the scents with detailed instructions on the back of the box. All of the scents are amazing and not overpowering and the scent is not overpowering at all and you only need to add about 1 - 2 drops to get the right amount of scent coverage. I use them with my Anjou Oil Diffuser in my bedroom, home office and living room area. I would definitely recommend these essential oils for your diffuser and would purchase more.