Step 1. Preparation: Ensure safety attire is worn and work in a ventilated area. Pre-measure all ingredients for efficiency, measuring cold water and coconut oil first, followed by essential oils and sodium hydroxide last.

Step 2. Lye Solution: Carefully mix the sodium hydroxide with water in increments, avoiding fumes, and cover with plastic wrap to cool.

Step 3. Oil Solution: Melt coconut oil and shea butter, then blend with olive, palm, castor, and avocado oils.

Step 4. Blend Essential Oils and Clay: Mix kaolin clay with peppermint and tea tree essential oils, then incorporate into the oil blend.

Step 5. Colorant Preparation: Mix coconut carbon powder and titanium dioxide (optional) separately with olive oil to eliminate clumps.

Step 6. Soap Formation: At temperatures between 85°-95°F, combine lye solution with oils, aiming for an emulsion. Divide batter for color layering.

Step 7. Pouring Technique: Follow a strategic pour and layering method for the soap, beginning with a portion of the white batter, then the black, and finishing with the remainder of the white batter.

Step 8. Swirling: Utilize a hanger tool for internal batter swirling, creating intricate designs within the soap.

Step 9. Top Design: Decorate the soap's surface with leftover batter, employing a skewer for detailed patterns.

Step 10. Gel Phase: Optionally, induce gel phase using a heating pad and insulation to enhance soap quality.

Step 11. Unmolding and Finishing: Once ready, unmold and slice the soap into bars. Optionally, bevel edges after a day. Cure the bars for 4-6 weeks before use.