Soothing Calendula Body Wash Recipe

Making liquid soap, in this case a body wash, is a simple way to keep your shower well-stocked. With a relatively small amount of ingredients, you can create a beautiful and effective cleanser! I created this recipe for my fiancé who is sensitive to bar soap, and even added a custom fragrance that we both enjoy! It uses calendula infused olive oil to reduce irritation and inflammation on the surface of the skin, and a blend of conditioning oils to prevent dryness.

If you make your own soap or other skincare products, you probably have most of these ingredients on hand! However, while bar soap is made using NaOH (sodium hydroxide) lye, liquid soaps require KOH lye (potassium hydroxide) to stay diluted in water. This recipe uses a dual lye base to create a thick paste that dilutes well (without losing too much of that lovely gel feeling). I used SaponiCalc to create it, and went with 70% KOH lye and 30% NaOH lye.

As a side note, I added a very small amount of a preservative to keep it fresh in the warm bathroom environment, opting for Germaben II E at a ratio of 1 quart diluted soap to 1/2 tsp preservative. While many people don’t use preservatives in their liquid soaps, I would rather avoid potential mold contamination in the steamy environment it will live in.

Showing you how it lathers!

On to the recipe!

Ingredients:

  • 5.6 oz distilled water
  • Sodium hydroxide lye 0.59 oz
  • Potassium hydroxide lye 2.16 oz
  • Castor oil – 2.4 oz
  • Coconut oil (76°F) – 4 oz
  • Olive oil infused with Calendula – 5.6 oz
  • Shea butter – 2.4 oz
  • Sunflower seed oil – 1.6 oz
  • Sweet almond oil carrying helichrysum essential oil, rosemary essential oil, and peppermint essential oil (for fragrance; these essential oils can be omitted or replaced based on other safe fragrance options) – 2 oz

Total weight before dilution and added oils: 24.86 oz

Begin by turning on your crock pot to a medium-high setting (mine only has a high and low, so I started on high and adjusted throughout to avoid burning the soap). Add the coconut oil and shea butter to the crock pot. While that melts, add in your castor oil, calendula-infused olive oil, and sunflower seed oil.

Mix together your lye and water slowly, stirring well to disintegrate all of the flakes. Slowly add this to your oil mixture and emulsify with a stick blender. This step can take anywhere from 5-20 minutes depending on your emulsifier. You will know when it is okay to stop when it reaches a thick mashed potato consistency. If your blender starts to overheat switch to another or leave the mixture on a low heat setting and come back to it once your blender has cooled. Make sure to wear protective clothing, including chemical resistant gloves, goggles, and long sleeves to avoid being splashed by the mixture; not only is it hot enough to burn you, it also contains unsaponified lye, which can cause chemical burns on its own. Use a small crockpot to avoid splashback or emulsify the mixture in a separate container before moving to your crockpot.

Stir every 30-40 minutes until you are left with a paste that is transparent before you disturb it by stirring. Keep on medium-high heat while you wait. Once it reaches the transparent paste stage, remove from heat, carefully transfer to a jar, and allow to cool. Once cool, you can add your distilled water and sweet almond oil. Depending on how thick you want your soap, you can add different amounts of water. Start with small amounts and stir or use a stick blender to dilute the paste into a liquid. In the end you should end up with a golden-brown soap that is translucent! If you use a stick blender to dilute the soap, don’t be surprised to see that it is opaque for the first week or so. It will settle over time into that beautiful golden-brown colour! At this point, you can also add a preservative of your choice and any colourants or additives you like. I prefer to keep it simple and don’t use any mica or other suspensions, but you can customize your finished soap as much as you like! To thicken it to your preference, you can also add a gum such as xanthan gum, or leave it as is. I prefer a thicker soap, but it lathers well and works as is, too!

Diluted soap in the process of settling after being blended a few days ago. The bottom is the end results’ final colour!

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