Go Back
–+ servings
shampoo bar with castor oil

Lavender Shampoo Bar With Castor Oil

I found switching tact to formulating shampoo bars to be a much easier experience than designing a liquid shampoo, take a look at this one I made using castor oil.
Print
Prep Time: 5 minutes
Active Time: 25 minutes
Total Time: 30 minutes
Course: DIY Bath & Body
Cuisine: N/A
Difficulty Level: Easy
Yield (adjustable): 100 g
DISCLOSURE: SavvyHomemade.com is reader-supported. The ingredient and equipment links below are affiliate links, If you buy via the links we may earn an affiliate commission at no cost to you. Learn more here..

Ingredients:

Dry Ingredients

Wet Ingredients

Equipment:

Instructions:

  • Before you begin, put on your face mask. Place all your drying ingredients into a bowl and stir.
    38 g Sodium Cocoyl Isethionate, 24 g Sodium Lauryl Sulfoacetate, 13 g Arrowroot Powder, 5 g D-Panthenol Powder
    Place all your drying ingredients into a bowl
  • If using, add the mica to the dry ingredients. I find micas can differ in color, so I prefer to eyeball the amount I'm adding. Remember that the mica will be three times darker once the wet ingredients have been added.
    Mica Powders
    add the mica to the dry ingredients
  • In a separate small beaker/container, Add the Cocamidopropyl Betaine, Caster Oil, glycerine, wheat protein, lavender essential oil, and the preservative. Stir to combine.
    10 g Cocamidopropyl Betaine, 8 g Castor Oil, 2 g Glycerine, 1 g Lavender Essential Oil, 1 g Preservative, 2 g Hydrolyzed Wheat Protein
    Measure and combine wet ingredients
  • Pour the wet ingredients into the bowl containing the dry ingredients.
    Pour the wet ingredients into the bowl
  • Use the spatula to bring the ingredients together. You are looking for a crumble-type consistency.
    Use the spatula to bring the ingredients together.
  • Once you have the correct consistency that is not too sticky so that it sticks to your hands, you can use your hands to bring it all together. Give it a good knead to ensure everything has been fully incorporated and you have the consistency of play dough. If the dough is too sticky, you could add more arrowroot powder or more glycerine if it is too dry.
    Give it a good knead to ensure everything has been fully incorporated
  • We can start filling the mold when you have a good flexible dough. I like to push the shampoo dough in a bit at a time to make sure it is getting into all the corners and sides. You can place the whole dough ball in and give it a good squish down.
    start filling the mold
  • For a smoother finish, try placing a piece of wax paper over the dough and smoothing it down with the palm of your hand. You can then place the mold into the freezer for a couple of hours to harden.
    try placing a piece of wax paper over the dough and smoothing it down with the palm of your hand
  • Once the shampoo bar has hardened, you can remove it from the mold. Be patient and begin by tugging at the edges of your mold. The shampoo bar will need to dry out and harden for a good few days before you can use it. I found most bars take around a week before they are ready.
    Once the shampoo bar has hardened, you can remove it from the mold.

Notes:

Important:
    • This shampoo bar can be used as an all-over soap as well as a shampoo bar. 
    • To check the pH. Unfortunately, the bar needs to be solid, so you shave 1g from it and dissolve it in 9g water. Adjust the sample if needed (5 to 6pH), then multiply this by the bar's weight. In this case, the bar is 100g, so if the sample needs to be adjusted by 0.002, we could multiply this by 100 = 0.2, so we would add 0.2g of citric acid to the next bar we make.
    • You must wear a face mask whilst working with powder surfactants.
Tried this projectMention @Savvyhomemade or tag #savvyhomemade!