How to Make Homemade Sulfur Soap

Updated February 21, 2017

Acne is a common condition that affects millions of people and can be difficult to treat with chemical products currently on the market. Sulphur has been used for decades to dry up and prevent acne blemishes. Add sulphur to homemade soaps to clear the skin without inflaming it with the unnatural, chemical ingredients found in most soaps.

Heat the oil and lye. Combine the oils and the lye correctly, making sure the ingredients are the same temperature when combined. Combined the lye with water in a glass container, keeping the fumes away from your eyes and nose. The lye will interact with the water and will heat on its own. Place a glass candy thermometer in the container to monitor the temperature. While you are waiting for the lye to heat, slowly heat 1,419ml of oil in a stockpot. Olive, palm and coconut oils work well in soaps. Place a second glass candy thermometer into the stock pot. When both substances reach 43.3 degrees Celsius, combine them.

Combine the oils and lye. Carefully pour the lye water into the oils. Avoid splashing the lye. Wear rubber gloves while pouring the lye. Keep the lye water and the oils out of the reach of children, as both are hot, and lye is highly caustic.

Use a wooden spoon and stir the mixture constantly until it begins to thicken and trace. When tracing occurs, the mixture will resemble a thin pudding. Once tracing occurs, add ingredients, such as medicated powders, natural pigments or fragrances.

Add sulphur powder to create a great acne-fighting soap. Buy sulphur powder at any soap-making supply store or online. Pour in 1/4 cup of sulphur powder, stirring the mixture well so the sulphur is completely incorporated and smooth.

Pour the soap mixture into soap moulds, and store them in a cool, dark area of your home where they will not be disturbed. Leave them for at least six weeks to cure. This allows the soap to harden so it will lather well. After six weeks, use the homemade sulphur soap to treat your acne.


To scent the soap, add 1 tsp of essential oil to the mixture as it is tracing. This will cover the smell of the sulphur. To add colour, add 1/8 tsp of natural pigment to the mixture during the tracing.


Sulphur can dry the skin, so use the sulphur soap no more than two times per day.

Things You'll Need

  • 198gr of lye
  • 1361gr of oils
  • 454gr of water
  • 1/4 cup of sulphur powder
  • glass measuring cup
  • two glass candy thermometers
  • stockpot
  • soap moulds
  • rubber gloves
  • protective goggles
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