Shea Butter and Coconut Milk Soap

Last updated: July 2026

Some soaps are made for a rich, tropical treat — this one leans into that with coconut milk giving it a creamy, indulgent character. This traditional cold-process soap follows the fundamentals covered in this simple shea butter soap guide, using coconut milk in place of water for a creamier, more nourishing bar. Compared to commercial "coconut milk" soaps, which often list water first and coconut milk further down the ingredient list, this one uses real coconut milk as a core part of the formula. It's a great recipe for anyone who has made cold-process soap at least once before, since the lye and milk measurements matter more than usual.

In This Recipe:

• What This Recipe Helps With
• Before You Begin: Soap-Making Safety
• Ingredients
• Directions
• Customisation Ideas
• Storage & Shelf Life
• Voice Search FAQ
• Try These Next
• Disclaimer

What This Recipe Helps With

• Everyday cleansing with a rich, creamy lather
• A tropical, indulgent addition to a daily wash routine
• Replacing synthetic detergent bars with a traditional, hand-made alternative
• A comforting, luxurious feel for anyone who loves coconut
• Giving as a hand-made gift once fully cured

Before You Begin: Soap-Making Safety

• Wear protective gloves and eye protection whenever you handle lye.
• Work in a well-ventilated area — open a window or work near an extractor fan.
• Always add lye to water or milk, never the reverse.
• Keep lye, raw soap batter, and curing soap well out of reach of children and pets.
• This is an adults-only project from start to finish.

Why This Is a Great DIY Recipe

There's something satisfying about watching a liquid oil-and-lye mixture transform into a rich, creamy bar over the course of a few weeks. Compared to commercial "coconut milk" soaps, which often use only a small amount of coconut milk alongside water and fillers, this one is a clean, concentrated formula built around real coconut milk. It's ideal for anyone who enjoys hands-on projects and wants full control over what goes into their soap. Skill Level: Intermediate — the process is forgiving in terms of mould choice, but precision matters for the lye and milk measurements. This recipe yields approximately 4 pounds of soap, which typically cuts into 8–10 bars.

Why These Ingredients Work Together

This bar balances conditioning oils with cleansing and lathering ones, finished with a rich, creamy character from coconut milk. Shea Butter contributes deep conditioning and a smooth, creamy bar texture. Traditional Coconut Oil is the primary cleansing and lathering oil, producing big, bubbly suds. Olive Oil softens the bar's feel and supports mildness, while Castor Oil boosts and stabilizes the lather that coconut oil starts. Coconut Milk replaces water in the lye solution, adding a rich, tropical character and a naturally creamy feel.

Hero Ingredient Benefits

• Shea Butter: Deeply conditioning, it helps keep the finished bar from feeling drying even with cleansing oils in the mix.
• Traditional Coconut Oil: Drives the rich, bubbly lather this soap is known for.
• Olive Oil: A gentle, mild oil that supports the bar's overall skin-comfort feel.
• Castor Oil: Stabilizes and enhances lather, helping bubbles last longer in use.
• Coconut Milk: Adds a rich, tropical character and a naturally creamy feel to the finished bar.

Ingredients

• Shea Butter — 454g (1 lb)
• Traditional Coconut Oil — 454g (1 lb)
• Olive oil — 227g (1/2 lb)
• Castor oil — 227g (1/2 lb)
• Coconut milk — 397g (14 oz)
• Sodium hydroxide (lye) — 200g (7 oz)

Note: these lye and milk amounts are calculated for this exact oil combination and weights. If you change any oil or its amount, always re-run the recipe through a soap calculator before making it — see the calculator links in Customisation Ideas.

Directions

1. Put on gloves and eye protection before handling lye.
2. In a heat-resistant container, slowly add the sodium hydroxide to the coconut milk (never the reverse), stirring until fully dissolved. The mixture will heat up and may darken slightly — set it aside in a ventilated area to cool.
3. Melt the shea butter, coconut oil, olive oil, and castor oil together gently until fully liquid.
4. Once the lye-milk solution and the oils are both around 38–49°C (100–120°F), slowly pour the lye-milk solution into the oils, stirring continuously.
5. Use a stick blender in short bursts, alternating with hand stirring, until the mixture reaches trace — it will thicken and leave a visible trail when you drizzle it across the surface.
6. Pour the mixture into a soap mould, tap gently to release air bubbles, and cover.
7. Let the soap set in the mould for 24–48 hours before unmoulding.
8. Cut into bars once firm enough to handle, then set the bars on their sides in a well-ventilated space to cure for 4–6 weeks before use.

Application Tips

Use like any bar soap for hands, face, or body — lather with warm water and rinse well. A soap dish with drainage will help the bar last longer between uses. Because this soap is rich in conditioning oils and milk, a light lather goes a long way; no need to scrub aggressively. Store the bar dry between uses for the longest life.

Storage & Shelf Life

Cure fully cured bars in a cool, dry place away from direct sunlight — a drawer or shelf with airflow works well. Cure time is 4–6 weeks; do not use the soap before curing is complete, as it needs this time to fully harden and mellow. Once cured, bars typically keep well for 12–18 months. Between uses, store on a well-draining soap dish to extend the life of each bar.

Customisation Ideas

• Add a scent with a tropical-leaning essential oil, such as lime or coconut fragrance oil, stirred in at trace.
• Add texture with a tablespoon of shredded coconut for a decorative, textured finish.
• Adjust the mould to individual bar moulds instead of a loaf mould for a different shape.
• Always recalculate lye and milk amounts with a soap calculator (see links below) before changing any oil or its weight.
• Freeze the milk into cubes before adding lye to help keep the mixture cool and prevent scorching.

Popular soap calculators (external links, always re-run before adjusting oils): SoapCalc.net, HSCG Lye Calculator, LyeCalc.com.

The Impact of Your Purchase

When you make skincare with Baraka ingredients, you're supporting women's cooperatives who earn fair wages and preserve traditional processing methods. According to Baraka's Social and Environmental Impact Report, this direct trade model provided income for over 1,000 women and prevented 47 metric tons of CO2 emissions. You also gain complete transparency — knowing exactly what touches your skin and your family's skin, without hidden synthetics or uncertain supply chains.

Meet one of the women behind these ingredients in this short film: Shea Butter Producer Zenabo Imoro.

Shop the Baraka Ingredients in This Recipe

Pure. Natural. Ethically sourced. Hand-crafted by women's cooperatives. These are the ingredients trusted throughout Baraka's DIY guides and recipes.

Shea Butter | Shop Now | Rich and deeply moisturising, naturally high in vitamins A and E. Nourishes dry skin and helps protect the skin barrier without clogging pores. A versatile base for balms, creams, and body butters.

Traditional Coconut Oil | Shop Now | Lightweight and versatile, softens skin and supports gentle cleansing. Adds slip and glide to balms, soaps, and body products. Absorbs well and helps protect hair proteins.

Voice Search FAQ

How do I make shea butter and coconut milk soap at home?
Melt shea butter, coconut oil, olive oil, and castor oil, combine with a lye-coconut milk solution, blend to trace, pour into a mould, and cure for 4–6 weeks.

What's a good DIY soap recipe with coconut milk?
A shea butter-based cold-process soap with coconut milk works well, adding a rich, tropical character to a traditional soap base.

Can I use coconut milk in place of water in soap?
Yes — coconut milk is commonly used in place of water in cold-process soap, adding a rich, creamy character and tropical feel to the finished bar.

How long does homemade soap need to cure?
Cold-process soap like this typically needs 4–6 weeks to cure fully. Curing lets excess water evaporate and allows the bar to harden, so don't use it before this time is up.

Try These Next

If you enjoyed this recipe, you might also like:

• Shea Butter and Eucalyptus Soap — a fresh, herbal variation for a different clarifying character.
• Shea Butter and Turmeric Soap — a golden-toned, earthy variation for a different everyday bar.
• Shea Butter and Vanilla Bean Soap — a warm, sweet-scented option for a comforting everyday bar.
• Shea Butter and Cinnamon Oil Soap — a warm, spiced variation for a different cozy scent profile.
• Shea Butter and Orange Oil Soap — a bright, citrusy variation for a different energizing bar.

About These Ingredients

This recipe is expanded from our comprehensive Definitive Guide to DIY with Shea Butter, which explores additional formulations, ingredient options, and variations. Visit the full guide for more approaches to shea-based DIY skincare.

Disclaimer

The recipes and ingredients on this page are intended for cosmetic use only — for application to the skin, hair, and nails to cleanse, condition, and beautify. They have not been evaluated or approved by the Food and Drug Administration (FDA) or any other regulatory authority. These products are not intended to diagnose, treat, cure, or prevent any disease or medical condition. If you have a medical condition, skin condition, or known allergies, consult a qualified healthcare provider before use. Always patch-test new ingredients before full application. Keep all products away from eyes and out of reach of children. Results will vary between individuals.