We recommend oils be added to black lava stones (1-2 drops undiluted) while bracelet is placed on top of a paper towel to absorb excess. Please allow time for the stones to absorb the oils (typically 5-15 minutes). Excess oils can be removed by dabbing with a paper towel. Please note, depending on the color of the oil, essential oils can stain white lava stones.
Alternately, oils can be diluted prior to being added to lava stones, and then they can be added to the bracelet while on your wrist and they can touch the skin with no problem. Please see the dilution chart in About Us section for recommended topical dilutions.