How to make calamine soap (with pictures)

How to make calamine soap (with pictures)
How to make calamine soap (with pictures)

Calamine lotion is helpful in relieving dry itchy skin. However, sometimes it is insufficient and your skin needs a little more care. Instead of applying calamine lotion all the time, why not try washing yourself with calamine soap? The melt and pour method is a safe and easy way to make a small amount of soap for your personal use. If you are an experienced soap maker, you can try making larger quantities using the cold saponification method.


Method 1 of 2: Use the melt and pour method

Make Calamine Soap Step 1

Step 1. Cut or break up 340 g of goat's milk soap base

Cut the soap base into pieces of 1 to 2, 5 cm. This will allow it to melt faster and more evenly. Some soap bases come with cutting instructions that you can use. Make sure you are using a melt-and-pour type soap base, as conventional store-bought bars of soap will not melt. You can find these products in craft stores or on the Internet.

  • You can also use 340g of white glycerin soap base instead.
  • Melting and pouring soap is a good way to try your hand at soap making because it does not require soda which can be dangerous.
Make Calamine Soap Step 2

Step 2. Melt the soap in a double boiler or in the microwave

You can melt the soap in 2 ways: in a double boiler on the stove or in a glass container in the microwave. Choose the method that works for you, then remove the soap from the heat. Keep it in the container where you melted it.

  • On the stove: prepare a bain-marie over low heat. Pour the soap into the bowl and let it melt completely, stirring occasionally. Remove the pan from the heat and wait for the soap to finish melting.
  • In the microwave: heat the soap for 30 seconds. Stir then heat for 10 seconds. Stir again then continue heating and stirring at 5 second intervals until the soap has melted.
Make Calamine Soap Step 3

Step 3. Pour in 2 tablespoons of calamine lotion

Mix, making sure to scrape the bottom of the pan. This will prevent the mixture from settling to the bottom.

Make Calamine Soap Step 4

Step 4. Break then add 5 capsules of vitamin E

This step is not necessarily necessary, but it will make the soap more nourishing.

Make Calamine Soap Step 5

Step 5. Add 2 drops of red soap colorant

Stir the mixture with a spoon until the soap color is even and no streak remains. Adding dye is not mandatory, but it will make your soap pinker and remind you of calamine lotion. You can leave out the dye if you prefer.

Make sure it's soap dye. Candle or fabric dyes can harm the skin and food coloring can stain

Make Calamine Soap Step 6

Step 6. Add 7 to 15 ml of fragrance oil

Again, this step is not mandatory, but it will give your soap a more pleasant scent. Use a calming scent like rose or lavender. If it's for a child, try something associated with the color pink like chewing gum or cotton candy.

  • Make sure they are scent oils for soap making. The oils used to make candles are not considered safe for the skin.
  • You can use essential oil instead of scent oil. Make sure it is safe on the skin, as not all essential oils are.
Make Calamine Soap Step 7

Step 7. Pour the soap into a mold

You can use a round or square PVC mold. You can also use custom molds. If you are using a round or square pan, you will need to cut the soap into smaller bars after it has dried.

  • For a single mold, cut out the bottoms of 6 7-8cm water bottles and use them instead.
  • If the mixture is bubbling, spray its surface with isopropyl alcohol. The bubbles will disappear.
Make Calamine Soap Step 8

Step 8. Allow the soap to cool and dry

It will take 30 minutes if you use several small molds and several hours if you use a single large mold.

Make Calamine Soap Step 9

Step 9. Unmold the soap

Simply turn the mold over and let the soap come out. You may need to shake the sides to make the process easier. If you used a large mold, such as a round or square PVC mold, cut the soap into smaller bars. You will need to get 3 or 4 bars. Once the soap is out of the mold, you can use it!

If you used plastic water bottles as molds, you will need to cut the bottles with a cutter before removing the soap

Method 2 of 2: Use the cold saponification method

Make Calamine Soap Step 10

Step 1. Protect yourself and your work surface

You will be using soda, which can be dangerous if not handled properly. Wear eye protection, a mask, rubber gloves and a long-sleeved shirt. Plan for an accurate digital scale. Your measurements must be precise or the saponification will not be done correctly.

  • You will use the scale to measure everything, including liquid ingredients.
  • This recipe will give a lot of soap. You can adapt it to get smaller quantities, but you will need to use an accurate calculator to convert the quantities.
Make Calamine Soap Step 11

Step 2. Prepare the water and soda solution

Measure and pour 1, 125 l of cold water into a large pitcher. Then measure 425 g of soda that you will sprinkle in the water. Let heat up to 94 ° C then stir with a spoon for 30 seconds until the soda dissolves.

  • Do not pour never water directly into the soda, as it could explode.
  • Use a pitcher specially designed for this purpose. Do not reuse this container for anything else.
  • There are different types of sodas used to make soap. You will need sodium hydroxide (NaOH).
Make Calamine Soap Step 12

Step 3. Set aside the solution

Put a lid on the pitcher and put it somewhere where it won't tip over. Allow the solution to cool to 38-52 ° C. It may take 30 minutes to 2 hours.

Make Calamine Soap Step 13

Step 4. Melt oils and butters

You will need 900ml of coconut oil, 900ml of olive oil, 620ml of soybean oil, 510ml of palm oil, 22g of coconut butter and 11g of butter of shea. You can melt them in a large saucepan or in a double boiler if you find one large enough. Heat the ingredients between 38 and 52 ° C.

Make Calamine Soap Step 14

Step 5. Pour the cooled soda solution into the oil and butter mixture

Wait for the oil and butter mixture to cool to 52 ° C or less before pouring in the cooled soda solution. Mix everything together using a hand blender set at low speed. Keep the blender at the bottom of the saucepan.

Be careful to prevent the mixture from splashing onto you. Saponification is not yet effective, which means that the mixture is still caustic and can cause burns

Make Calamine Soap Step 15

Step 6. Wait for the mixture to leave traces

The traces appear after 3 or 5 minutes. The mixture will turn runny and look like pudding. If the blender leaves marks on its surface when you take it out, you're good to go. Be prepared to work quickly during the next steps, as the mixture will start to harden.

Make Calamine Soap Step 16

Step 7. Add the prepared food coloring to the mixture

Mix about 1 teaspoon of red iron oxide with ½ tablespoon of glycerin or olive oil. Pour into the soap mixture until it is almost the same color as the calamine lotion. Don't be afraid if the mixture looks a bit dark. Zinc oxide in the next step will give it a lighter shade.

You probably won't need to use all of the dye

Make Calamine Soap Step 17

Step 8. Pour in the zinc oxide

You will need ½ to ¾ cups (660 g to 1 kg) of zinc oxide. Keep adding the zinc oxide until the mixture is the same color as the calamine lotion. When mixed with iron oxide, zinc oxide will decrease the itchiness on your skin. Iron oxide and zinc oxide are both important ingredients in calamine lotion.

Make Calamine Soap Step 18

Step 9. Pour in the essential oils

You will need 110 ml of essential oils in total. You can use any scent or scent combination you want. A combination of chamomile, lavender, and tea tree should especially do the trick.

Make Calamine Soap Step 19

Step 10. Pour the mixture into a 3.5 kg soap mold

You can use several small molds if you want. Some molds need to be covered with parchment paper or plastic wrap first. Other molds, usually silicone ones, do not need to be prepared.

  • Tap the bottom of the pan against the counter to drive out any bubbles.
  • Some people prefer to leave the top of the soap bulging. If you want it to be smoother, run a spoon over it.
Make Calamine Soap Step 20

Step 11. Cover the soap with plastic wrap and blankets

Then wait 24 hours. Wrap plastic wrap around the mold and cover it with blankets and quilts. This will isolate the soap while it hardens and saponifies.

You can monitor the progress of the process from time to time. If you see a crack forming on the soap, it means it is too hot. Remove the covers

Make Calamine Soap Step 21

Step 12. Unmould, cut and let the soap dry

First unmold the soap then cut it into bars. Place the bars on a baking sheet and put them somewhere where no one can touch them. Let them dry for 4 weeks. After 4 weeks, the soap will be saponified and ready to use.


  • You can find soap dyes and scent oils on the Internet and in craft stores.
  • Soaps made with calamine lotion are not as effective as calamine lotions applied directly to the skin. This is because the lotion is diluted in the soap.
  • Use an accurate digital scale to measure all of your ingredients, including liquids.


  • Always wear eye protection, gloves, long-sleeved clothing, and a mask when working with soda. The mixture will be caustic until its saponification.
  • Do not pour never of water in soda. Always add soda to the water.
  • Even though the melt and pour method is safer than the traditional soda method, you will still be handling ingredients that can reach 48 ° C. Be careful !

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