How To Make Solid Shampoo Bars

Solid shampoo bars are becoming quite popular. They are simply a bar of soap that contains oils that are better suited for the hair and scalp. To make these simple bars please follow my step by step instructions.

First as with any recipe, gather all of the ingredients that you will need. Allow your base station to be a large area, with plenty of room. Your kitchen table for instance.

Your tools:

  • Two large enameled sauce pans
  • Two wooded spoons
  • An accurate set of kitchen scales
  • One heat proof jug to measure with
  • Rubber gloves
  • Protective goggles
  • A mould to pour the liquid into for the soap to set up
  • two cooking thermometers
  • A large beach towel

After you have set up all of your tools, it is now time to gather your ingredients. Don't try to substitute anything. This is a chemical process, and following instructions carefully is a must.


  • twelve ounces of cold water
  • eight ounces of hard coconut oil
  • eight ounces of extra virgin olive oil
  • six ounces of hard palm oil
  • six ounces of castor oil
  • 125 grams of sodium hydroxide
  • three ounces of rosemary oil
  • one ounce of jojoba oil

Okay, were making progress. You now have your tools, and all of your ingredients spread out before you. The hard part is over. Let’s get started.

Pour your water into the measuring jug, making sure its 12 ounces. Place your sodium hydroxide beads onto your kitchen scale. Weigh out 125 grams precisely.

Take a deep breath before you start. During this step you have to be careful not to breathe the vapors that it will give off. So you’re going to have to hold your breath. Ready? Now carefully add the sodium hydroxide to your water. Pour slowly, while stirring with your wooden spoon. Stir until completely dissolved, and there are no clumps left. This will heat up to 200 degrees, and will need to be left to cool. Place your thermometer into the cooling solution and set to the side. Breath.

Step two... Measure out 8 ounces of coconut oil and 6 ounces of palm oil. Place into a sauce pan. Melt it at a slow heat on the stove. Be sure not to overheat. You should turn off the heat when there are still traces of hard oils still left in the pan. Leave this to be melted while the burners are cooling.

Step three is the mixture of all the remaining oils. Place 8 ounces of extra virgin olive oil, 3 ounces of rosemary oil, 1 ounce of jojoba oil, and 6 ounces of castor oil into the other pan. This will be your soap making pan.
Once again, heat on a slow heat. Be careful not to over heat. Once melted take the first oil mixture and pour it into this. Take your remaining thermometer and place it into the mixture.

Once both the oil solution, and the lye solution (sodium hydroxide) are at the same temperature they can be mixed together. Make sure that the mixtures are between 80 degrees and 130 degrees. As long as you stay between these temperatures your okay.

Once they reach these temperatures, slowly pour the lye solution into the oils. Stir all the while. After all the lye has been poured keep stirring. It will start to thicken, now raise your spoon out of the mixture and if it leaves a trace before seeping back into the mixture you can stop stirring. If you stop stirring before it’s completely mixed it will probably separate when it is cooling.

Once you’re satisfied pour your thickened mixture into the soap moulds. Cover with wax paper, and then cover that with your beach towel. Set aside to cure for about 24 hours.

Remove soap from moulds. Cut into any shape that you want. It should be hard enough to cut, but it will still be slightly soft. It still has some curing to do.

Place soap bars onto wax paper and cover with another layer of wax paper. Lay somewhere dry and out of heat. In the back of your pantry maybe. Allow 3 to 4 weeks to cure.


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