In recent years, natural skincare has seen a resurgence, with people turning to simple, eco-friendly solutions. One standout in this movement is green soap—an all-natural soap that brings a sense of freshness and purity to skincare. Handmade green soap can be a nourishing treat for the skin, offering gentle cleansing without harsh chemicals. This guide will show you how to make your green soap at home, using simple ingredients to create an effective and soothing bar.
What is Green Soap?
Green soap gets its name from its natural, often plant-based ingredients, which give it a soft green tint. This soap is traditionally made from oils like olive or coconut oil, herbs, and natural colorants like spirulina or clay, offering a gentle, moisturizing cleanse. It’s popular for its mild formula and suitability for various skin types, including sensitive skin.
Benefits of Green Soap for the Skin
Green soap is known for being:
- Mild and Non-Irritating: Free of harsh chemicals, green soap is gentle on the skin, making it a great choice for sensitive or dry skin types.
- Naturally Moisturizing: With ingredients like olive oil or coconut oil, green soap helps maintain the skin’s moisture balance.
- Rich in Antioxidants: Plant-based ingredients and oils provide antioxidants, which can help protect the skin from environmental stressors.
- Environmentally Friendly: Made with biodegradable ingredients, green soap is kind to the planet.
Key Ingredients for Homemade Green Soap
When making green soap, it’s essential to use high-quality, natural ingredients. Here’s what you’ll need:
- Olive Oil: A moisturizing base oil rich in antioxidants.
- Coconut Oil: Adds lather and hardness to the soap, creating a firm yet gentle bar.
- Castor Oil: Helps boost lather and has humectant properties to draw moisture into the skin.
- Spirulina Powder or Matcha: Natural green colorants that are packed with antioxidants and provide a beautiful, earthy hue.
- Essential Oils: Choose oils like lavender, eucalyptus, or tea tree for fragrance and added skin benefits.
- Lye (Sodium Hydroxide): An essential ingredient for soap-making, as it’s responsible for turning oils into soap. While lye is transformed during saponification, be cautious when handling it.
Note: Always use protective gloves and eyewear when handling lye, as it can be dangerous if not handled carefully.
How to Make Green Soap at Home
Follow these step-by-step instructions to make your own batch of green soap. This process involves using the “cold process” method, where the soap will need to cure for several weeks before it’s ready to use.
Ingredients
- Olive Oil: 500g
- Coconut Oil: 200g
- Castor Oil: 50g
- Distilled Water: 250g
- Lye (Sodium Hydroxide): 100g
- Spirulina Powder or Matcha Powder: 1-2 tsp for color
- Essential Oils (optional): 15-20 drops of your choice
Equipment
- Digital scale
- Safety gloves and eyewear
- Mixing bowls (glass or stainless steel)
- Silicone or wooden soap mold
- Stick blender
- Spatula
- Thermometer
Instructions
- Prepare the Lye Solution:
- Begin by carefully measuring 100g of lye and 250g of distilled water using your digital scale.
- Wearing gloves and eyewear, slowly add the lye to the water in a heat-resistant container (never add water to lye). Stir until fully dissolved, then set aside to cool in a safe place.
- Measure and Melt the Oils:
- In a separate bowl, weigh your oils: 500g olive oil, 200g coconut oil, and 50g castor oil.
- Melt the coconut oil if it’s solid, then combine all oils in a large mixing bowl. Stir well.
- Combine the Lye Solution and Oils:
- When both the oils and the lye solution have cooled to about 110°F (43°C), slowly pour the lye solution into the oils.
- Using a stick blender, blend the mixture until it reaches a “trace” (the point when the mixture thickens and leaves a trail when the blender is lifted). This process usually takes about 5-10 minutes.
- Add Color and Essential Oils:
- Once the soap has reached trace, add 1-2 teaspoons of spirulina or matcha powder. This will give your soap a beautiful green hue.
- If you’re using essential oils, add 15-20 drops and blend briefly to mix.
- Pour into the Mold:
- Pour the soap mixture into a silicone or wooden mold, using a spatula to spread it evenly. Gently tap the mold on a flat surface to remove any trapped air bubbles.
- Curing the Soap:
- Cover the mold with a lid or plastic wrap, then place it in a cool, dry location for 24-48 hours to harden.
- After 48 hours, remove the soap from the mold and cut it into bars.
- Allow the soap bars to cure for 4-6 weeks to fully harden and ensure mildness. During this time, the lye completely saponifies, leaving behind a safe and gentle soap.

Storage and Usage Tips
After the soap has fully cured, it’s ready to be enjoyed! Here are some tips for keeping it in its best condition:
- Store in a Cool, Dry Place: Moisture can cause handmade soaps to soften. Store them in a dry location to prolong their life.
- Use a Soap Dish: Place your soap in a dish with good drainage to prevent it from becoming mushy.
- Avoid Prolonged Water Exposure: To keep your soap lasting longer, avoid letting it sit in water for extended periods.
Benefits of Using Handmade Green Soap
1. Environmentally Friendly
Handmade green soap is biodegradable, making it an excellent eco-friendly choice. By avoiding harsh chemicals and preservatives, this soap is gentle on both your skin and the planet.
2. Rich in Skin-Friendly Oils
Green soap made with olive and coconut oil can provide hydration, nourishment, and gentle cleansing, leaving your skin soft and smooth. Olive oil, in particular, is known for its emollient properties, which help to maintain the skin’s natural moisture barrier.
3. Naturally Colored and Fragrant
Using spirulina or matcha for color gives green soap a unique look without synthetic dyes. Essential oils add a natural fragrance, which can elevate your bathing experience.
Adding Green Soap to Your Skincare Routine
Green soap is versatile and can be used as part of your daily skincare routine. Its gentle formula is ideal for:
- Face and Body Cleansing: This soap can be used daily to cleanse your skin without stripping it of natural oils.
- Exfoliating Bar: For a gentle exfoliating effect, consider adding finely ground oats or coffee grounds to your soap before pouring it into the mold.
- Hand Soap: Green soap works well as a hand soap, providing a mild cleanse without the drying effects of many commercial soaps.
Final Thoughts
Making handmade green soap is a rewarding and straightforward process. By combining natural oils with botanical colorants, you create a soap that’s kind to both your skin and the environment. This green soap recipe, free from baking soda, is perfect for anyone looking for a gentle, natural alternative to commercial soap bars. Give it a try, and experience the joys of crafting your own skincare essentials!