
Activated charcoal soap is a popular skincare product known for its ability to absorb and draw out oil and impurities from the skin. It is also used to treat acne, blackheads, and oily skin. When making activated charcoal soap at home, it is important to consider the fragrance, as activated charcoal has a natural smell that some may not like. While it is known for its odour-absorbing properties, activated charcoal does not absorb or negate the scent of essential oils added to the soap mixture. To maintain the fragrance of your activated charcoal soap, you can add essential oils such as peppermint, tea tree, patchouli, or lime. These fragrances not only provide a pleasant aroma but also offer additional benefits for the skin. It is also important to note that the natural smell of activated charcoal may be masked by the addition of certain fixed oils, such as sunflower or sweet almond oil, which can be used to disperse the charcoal before adding it to the soap base.
How to Maintain Fragrance in Activated Charcoal Soap
| Characteristics | Values |
|---|---|
| Type of fragrance | Essential oils such as peppermint, patchouli, lime, tea tree, and cedarwood |
| Amount of fragrance | 0.5-1.7 ounces of essential oil |
| Carrier oil | Disperse charcoal in lightweight liquid oil such as sunflower or sweet almond |
| Additional ingredients | Shea butter, glycerin, coconut oil, olive oil, palm oil, castor oil, tamanu oil, bentonite clay, titanium dioxide, indigo powder, etc. |
| Safety | Wear goggles, gloves, and long sleeves. Ensure kids, pets, and other distractions are not present |
| Molding | Add sodium lactate to cooled lye water for harder soap and faster release from the mold |
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What You'll Learn
- Use essential oils like patchouli, lime, or peppermint to mask the smell of charcoal
- Disperse charcoal in oil to help it mix into the soap batter more easily
- Use a coffee grinder to break up clumps of colour and prevent streaks in the final soap
- Add sodium lactate to harden the soap and get it out of the mould faster
- Clay can be used to anchor or protect fragrance in soap, but it is unclear if charcoal does the same

Use essential oils like patchouli, lime, or peppermint to mask the smell of charcoal
Essential oils are a great way to mask the smell of charcoal in your soap. They can also provide additional benefits such as skin care and stress relief.
Patchouli essential oil has a musky aroma and is often used in perfumes and colognes. It can be used to create a natural scent for your soap. Patchouli oil also has skin care benefits, helping to reduce the appearance of wrinkles, blemishes, or problem skin areas. To best receive the skin benefits of patchouli oil, add a few drops to your daily moisturiser or apply one to two drops directly to your skin.
Lime essential oil is another great option to mask the smell of charcoal. It has a fresh, citrusy scent and is known for its deodorizing properties. Lime oil can eliminate strong household odours, such as cigarette smoke, trash cans, and musty smells. It is also commonly used in commercial odour-eliminating products.
Peppermint essential oil is commonly used for its refreshing and breath-freshening abilities. It can be combined with patchouli oil to create a blend that provides both grounding and stabilising effects, as well as a refreshing and energising experience.
Other essential oils that can be used to mask the smell of charcoal include tea tree, eucalyptus, lavender, rosemary, and lemongrass. These oils also have deodorizing and antimicrobial properties, making them great additions to your soap.
When using essential oils, it is important to follow safety guidelines and dilute them properly. Some oils may also cause skin sensitivity, so it is always recommended to do a patch test before full application.
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Disperse charcoal in oil to help it mix into the soap batter more easily
Activated charcoal soap is a popular DIY project due to its natural ingredients and skin benefits. It is known for its ability to remove impurities, treat acne, and reduce excess oil, making it suitable for most skin types.
When creating your own activated charcoal soap, dispersing the charcoal in oil before adding it to the soap batter can help it mix more easily and prevent clumping. Here are some detailed steps and tips to guide you through the process:
Choose the Right Charcoal and Oil:
Select a suitable type of charcoal for your soap. Hardwood charcoal is great for external use and is easier to clean up compared to coconut charcoal. Coconut charcoal, on the other hand, is blacker and can be used to create a jet black soap when combined with blue or purple shades. For the oil, choose a lightweight liquid oil such as sunflower or sweet almond oil.
Measurements and Ratios:
The amount of charcoal and oil you use will depend on the desired colour intensity and the total weight of your soap batch. A general rule is to use 1 teaspoon of charcoal per 1 tablespoon of oil for cold process soap. However, if you want a darker colour, you can increase the amount of charcoal. For example, for a 48 oz batch of cold-processed soap, you might use 3 tablespoons of activated charcoal mixed with oil.
Disperse the Charcoal in Oil:
Combine the charcoal and oil in a separate container before adding it to your soap batter. Use a mini mixer or stick blender to thoroughly mix the two ingredients and break up any clumps. You can also use a coffee grinder to micronize the charcoal before dispersing it in oil, ensuring an even smoother blend.
Add the Mixture to the Soap Batter:
Once you have a smooth and clump-free charcoal-oil mixture, you can add it to your soap batter. Pour the mixture into your soap mould at a light trace. If you are creating a multi-layered soap, you can add the charcoal-oil mixture to specific layers to achieve different shades.
Additional Tips:
- Always work in a well-ventilated area and take safety precautions, such as wearing goggles, gloves, and long sleeves, when handling the ingredients.
- Activated charcoal is very fine and light, so be cautious to avoid creating a mess. Close windows and turn off fans while working with it.
- If you're adding fragrance to your soap, measure the essential oils separately and add them to your soap batter before pouring it into the mould.
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Use a coffee grinder to break up clumps of colour and prevent streaks in the final soap
When making activated charcoal soap, it's important to consider the colourant preparation. Disperse 1 teaspoon of titanium dioxide into 1 tablespoon of a lightweight liquid oil, such as sunflower or sweet almond oil. In a separate container, disperse 2 teaspoons of indigo powder into 2 tablespoons of lightweight liquid oil. Next, disperse 1 teaspoon of bentonite clay into 3 tablespoons of distilled water – this mixture will be quite thick. Finally, add 1/2 teaspoon of activated charcoal to 1/2 tablespoon of lightweight liquid oil.
To ensure a smooth blend, you can micronize the titanium dioxide before dispersing it in oil. This step is optional but can help create a more uniform colour throughout your soap.
Now, here's the key part to prevent clumps of colour and maintain a smooth, streak-free final product: use a coffee grinder. A coffee grinder will effectively break up any clumps of colour, ensuring a consistent and smooth soap batter. Look for a coffee grinder with a removable stainless steel mixing area, as this will make cleaning much easier.
After preparing your colourant and using the coffee grinder to break up any clumps, you can move on to adding fragrance. For a refreshing and unique scent, try a combination of essential oils. Measure out 1.5 ounces of patchouli essential oil and 0.5 ounces of lime essential oil in a glass fragrance oil-safe container.
If you're looking to mask the scent of activated charcoal, you can opt for peppermint essential oil or another fragrance oil of your choice. Remember to always work in a well-ventilated area when handling these ingredients.
By following these steps and utilising a coffee grinder, you can create a beautifully coloured, fragrant, and clump-free activated charcoal soap.
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Add sodium lactate to harden the soap and get it out of the mould faster
To maintain fragrance in activated charcoal soap, essential oils are often added to the mixture. For example, peppermint essential oil is added to cover up the smell of charcoal. Other essential oils that can be used include patchouli and lime essential oil, tea tree essential oil, and lingonberry spice fragrance oil.
Now, to add sodium lactate to harden the soap and get it out of the mould faster, follow these steps:
Firstly, it is important to note that sodium lactate is entirely optional. It is a popular additive, derived from the fermentation of sugars in beets and corn, that is used to harden soap and get it out of the mould faster. It can also be used to increase the liquidity of the soap before pouring. For a harder bar of soap, add sodium lactate to the cooled lye water. The recommended amount is 1 teaspoon of sodium lactate per pound of oils in the recipe. For example, if your recipe calls for 2 pounds of oils, you would add 2 teaspoons of sodium lactate to the cooled lye water.
It is important to note that sodium lactate should not be used in conjunction with a salt water solution, as this may cause the soap to become brittle or crumbly.
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Clay can be used to anchor or protect fragrance in soap, but it is unclear if charcoal does the same
Clay is commonly used in soap-making to "anchor" or protect fragrance. However, it is unclear whether charcoal has the same effect. Charcoal is a known "odour absorber", leading some to believe that it may diminish the scent of the soap rather than protect it.
One source suggests that the natural smell of the soap is still present after adding charcoal to the recipe, indicating that charcoal does not absorb odours or scents. However, the same source mentions that charcoal can be challenging to work with due to its super-fine powder consistency, which tends to create a mess.
Activated charcoal soap is known for its ability to remove impurities, exfoliate the skin, and treat acne and blackheads more effectively than regular soap. It is also beneficial for oily skin, as it absorbs excess oil and removes toxins.
When making charcoal soap, it is essential to fully melt and mix the oils, such as castor oil, coconut oil, olive oil, palm oil, and tamanu oil, before adding the lye water and blending until a thin trace is achieved. The addition of sodium lactate to the cooled lye water will result in a harder bar of soap that releases faster from the mould.
To add fragrance to activated charcoal soap, essential oils such as peppermint, tea tree, or patchouli and lime can be used. These oils not only provide a pleasant scent but also offer additional benefits for the skin. For example, tea tree oil has earthy, cleansing properties, and peppermint oil can help hide the smell of charcoal if desired.
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Frequently asked questions
To make activated charcoal soap at home, you will need the following ingredients:
- Shea butter and glycerin soap base
- Activated charcoal powder
- Essential oil (peppermint, patchouli, lime, or tea tree)
First, cut the soap base into small cubes and melt them in a clean bowl using a double boiler or microwave. Next, add 50 grams of activated charcoal powder to the melted soap and stir continuously. Then, add your chosen essential oil to the mixture. Finally, carefully pour the mixture into a soap mould and let it cool and harden.
Activated charcoal soap is known for its ability to absorb and draw out excess oil, dirt, and toxins from the skin, making it effective for treating acne and blackheads. It acts as an exfoliant, helping to remove dead skin cells and giving you a radiant, smooth complexion.
For melt-and-pour or cold-process soap, start with 1 teaspoon of dispersed charcoal per pound of soap. You can add more charcoal until you achieve your desired shade, keeping in mind that a large amount of charcoal may produce a grey lather and transfer colour to washcloths.
To maintain the fragrance in your activated charcoal soap, you can try using clays such as bentonite clay or kaolin clay, which are known to "anchor" or protect fragrances in soap. Dispersing the charcoal in oil before adding it to the soap batter can also help to maintain the fragrance by making it easier to mix. Additionally, closing windows and turning off fans while working with activated charcoal can prevent it from "poofing" up into the air and minimise mess.






































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