Soap Making

Activated Charcoal and Tea Tree Soap

Today I made Activated Charcoal and Tea Tree soap to go into my Christmas Gift Box Sets. All of the items in this box set have a “healing” theme and this particular soap can only be bought in the gift set so my customers look for it every holiday season.


  • 18 oz Coconut Oil
  • 18 oz Olive Oil
  • 18 oz Palm Oil
  • 6 oz Castor Oil
  • 2.5 oz Charcoal Powder (Activated)
  • 2.5 oz Tea Tree Essential Oil
  • 20 oz water
  • 8.61 oz sodium hydroxide

This for approximately 5 lbs of soap, one of my larger batches. As always, please plug your numbers into a soap calculator especially if you make adjustments.


1. Prepare lye solution and allow to cool. I usually cool to about 110 but time got away from me on this one and it was closer to 90 degrees by the time I was ready to use it.

2. Mix the Activated Charcoal with a small amount of oil from your batch in a separate container.

3. Mix Lye Solution and Oils. I stick blended for only about 45 seconds. 

4. Once emulsified, add Activated Charcoal Oil Mixture and mix by hand. 

5. Once thin trace is reached, add Tea Tree Essential Oil, mix well (by hand) and pour into your mold.

Once in the mold I sprayed the top with a little 99% alcohol to prevent soda ash and topped it with a little pink sea salt.

Then I covered my soap with saran wrap, (also helps prevent soda ash) and insulated with towels. I mixed all of the ingredients around 90 degrees which is lower than usual for me so I wanted to make sure it went fully through the gel phase, which is why I used the towels. I unmolded and cut these after about 20 hours.

Sorry about the terrible lighting on all these photos. I was working late at night so there was no natural light coming though my windows. It’s actually a beautiful soap. I could have used a bit more activated charcoal if I wanted a truly black soap but I think the dark smokey grey is complimented nicely by the pink sea salt.

Update: Here is the cut.

Activated Charcoal and Tea Tree Soap Recipe

The lighting here is much more accurate.

Tried it? What did you think?

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