Fill a medium pot with 2 inches of water and bring to a boil. Place a mason jar inside the pot to create a double boiler.
Add coconut oil, beeswax, and cocoa butter to the jar and stir occasionally until the mixture is fully melted.
Remove from the heat and add your essential oils and matcha powder. Stir. Pour the liquid into your molds and allow the lotion bars to cool fully before removing.
Notes
To use, simply rub the bars on your skin. As they warm up, they'll leave behind a thin layer of moisture.