Add the sea salt to a large mixing bowl. Check the salt thoroughly for any lumps and push them with the back of a spoon to break them down.
Measure out the coconut oil and and add to the salt in the mixing bowl. Use a rubber spatula or a whisk to blend together really well. You want to be sure to get all of the salt is wet with coconut oil. It should be all dampened, but not soaking wet.
Next, you can add in your essential oils. The frankincense oil and lavender oil are both thinner, so add the drops carefully. The myrrh oil, on the other hand, is the opposite. I only use myrrh oil occasionally, and sometimes I can barely get my lid off because it has stuck. Myrrh essential oil is a thick resin and it may help to take the orifice out of the bottle and use a dropper to get the right amount out if you're struggling to get the drops from the bottle. Mix the essential oils well into the salt blend and be sure the myrrh oil is evenly dispersed. It will color the salt a bit, which helps you tell when it’s blended in well enough.
Now, measure and add the activated charcoal powder, blending it in all the way. You will know when it is fully mixed because until it is, some parts of the sea salt will still be white. Once the salt is all dark gray or black in color, you are done mixing.
You can now add your charcoal salt scrub to your glass jar. Get the sides and bottom of the mixing bowl scraped clean with a rubber spatula so you can be sure to add all of the scrub mixture to the jar. I typically use a spoon to transfer it into jars with smaller mouths to prevent making a huge mess as I transfer it.
Notes
To Use
You can use this charcoal salt scrub every bath if you like, or just on occasion as needed for rough or dry areas of skin.
Place a small amount on a couple of fingertips and rub in a circular motion into dampened skin. Keep rubbing it in and you will feel the salt break down as you do so.
Once it has broken all down, go ahead and rinse well until the black is gone. You may need to rinse the tub or shower when you're done a bit too so you can get the black residue off.