Neat

Dilution usually NOT required; suitable for all but the most sensitive skin.  Safe for children over 2 years old.

50/50

Dilution recommended at 50-50 (1 part essential oils to 1 part carrier oil for topical and internal use, especially when used on sensitive areas -- face, neck, genital area, underarms, etc.  Keep out of reach of children.

20-80

Always dilute 20-80 (1 part essential oil to 4 parts carrier oil before applying to skin or taking internally.  Keep out of reach of children.