Creamy Cow Milk and Shea Butter Soap

Last updated: October 2026

Shea butter milk: a creamy cow milk and shea butter soap

Shea butter, cow milk, lye. Baraka's shea butter milk soap is a creamy cold-process bar of shea butter and cow milk, with the milk used in place of water, made with shea butter handmade by the women of the Konjeihi Women's Enterprise Centre in Ghana. Shea butter is the only oil in the recipe, 10 oz (283 g) of it, and 2.4 oz (68 g) of cow milk replaces the water for a richer, creamier bar. Let the soap cure for 4 to 6 weeks before you use it.

The method follows the fundamentals in How to Make Shea Butter Soap, with frozen cow milk taking the place of water in the lye solution. The ingredient list is short and the process is forgiving, which makes it a good first milk soap. The batch makes about 13 to 14 oz (369 to 397 g) of soap by weight.

In This Recipe:

• What This Recipe Is For
• Why Make This Yourself
• Why These Ingredients Work Together
• Ingredient by Ingredient
• Before You Begin: Soap-Making Safety
• Ingredients
• Directions
• Troubleshooting
• Storage and Shelf Life
• Scaling and Substitutions
• Customisation Ideas
• Essential Oils
• Application Tips
• What We Know and How We Know It
• FAQ
• Try These Next
• Disclaimer

What This Recipe Is For

A gentle everyday bar. This recipe makes a small batch of creamy, mild bar soap for hands, face and body, with these common uses:

• Everyday cleansing with a gentle, creamy lather
• A simple, beginner-friendly first soap recipe
• Replacing synthetic detergent bars with a traditional, hand-made alternative
• A rich, comforting addition to a daily wash routine
• Giving as a hand-made gift once fully cured
• Testing a new scent on a small batch before committing to a full loaf

Why Make This Yourself

Beginner, about 13 to 14 oz (369 to 397 g). This is one of the simplest soap recipes to start with: a short ingredient list and a rich, creamy character make it very approachable for first-time soap makers. Skill level is beginner. The process is forgiving, though the lye and milk measurements must be followed precisely. Prep and make time is about 30 minutes, plus a day or two in the mould and 4 to 6 weeks of curing.

Commercial milk soaps vary in how much milk they contain: some use milk as the main liquid, while others list water first and milk further down the label. This one uses real cow milk as the whole of its liquid and shea butter as the whole of its oil, so you know exactly what is in the bar. If milk soap is your entry point into making skincare, the Definitive Guide to DIY with Shea Butter covers the balms, butters and creams you can make with the same shea butter.

It is ideal for anyone new to cold-process soap making who wants to build confidence before trying more complex recipes, and the small batch keeps the cost of a first attempt low.

Why These Ingredients Work Together

One butter, one liquid. Shea butter is the sole oil base in this recipe, contributing conditioning and a smooth, creamy bar texture. Cow milk replaces water in the lye solution, adding a rich character and a naturally creamy feel to the finished bar. Fragrance oil and vitamin E oil round out the recipe, adding scent and a light conditioning touch.

The balance between the three main ingredients is fixed by the lye. Sodium hydroxide turns the shea butter into soap, and the recipe uses slightly less lye than the butter needs, so about 5% of the butter stays unsaponified in the bar. That margin, called the superfat, is what keeps the soap mild. The milk is the liquid the lye dissolves in, and because milk carries natural sugars, it needs to be kept cold so the lye's heat does not scorch it.

Ingredient by Ingredient

Shea butter

The whole oil base. Shea butter forms the entire oil base of this simple bar. Baraka's shea butter is unrefined, strained and filtered only, with no refining, bleaching or deodorising, and its natural colour ranges from ivory through cream to pale yellow, with a mild nutty smell that is normal and not a fault. It is solid at room temperature and traditionally used on dry skin, lips, hands, feet and hair. Stored away from heat and direct sun, the butter itself keeps for 2+ years, so a jar bought for this recipe will see you through many batches.

Because shea butter is the ingredient this page is built on, the one to use is Baraka's Raw Shea Butter: one unrefined butter makes up all of the oil in the bar, so its quality is the quality of your soap. Baraka's shea butter is made by hand by women's producer groups at the Konjeihi Women's Enterprise Centre in Wa, in Ghana's Upper West Region, and Wayne Dunn of Baraka has worked directly with the centre for over 15 years. You can see each stage of the traditional process in How is Handcrafted Shea Butter Made?, and what the work means for the women involved in Baraka's Social and Environmental Impact Report.

Cow milk

The liquid for the lye. Cow milk takes the place of water in the lye solution. Milk brings its own fats, proteins and natural sugars, plus minerals such as calcium, into the bar, and milk soap makers describe the result as a creamier, softer-feeling lather than the same recipe made with water. Whole or semi-skimmed milk both work. Freeze it first: the sugars in milk scorch easily, and frozen milk keeps the lye solution cold.

Sodium hydroxide (lye)

What makes it soap. Sodium hydroxide reacts with the shea butter to make soap and glycerin. None of it remains as free lye in a correctly made, fully cured bar, which is why the amount is calculated from the butter and never guessed. Handle it with the precautions in the safety section below.

Fragrance oil

Optional scent. Fragrance oil adds a light, pleasant scent to the finished bar. It is optional and easy to adjust to taste, within the limit given in the ingredient list. Choose one sold as safe for cold-process soap.

Vitamin E oil

A supporting oil. Vitamin E oil is a supporting ingredient commonly included in conditioning skincare formulations. Here it is stirred in at trace, after the lye has started to work on the butter.

Before You Begin: Soap-Making Safety

Lye is caustic: protect yourself first. Read these before you open the lye.

• 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 the milk (or water), never the milk to the lye.
• 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.

Ingredients

Five ingredients, all weighed. Weigh every ingredient on a digital scale; oils and lye are given by weight, never by cup.

• Shea butter: 10 oz (283 g)
• Cow milk: 2.4 oz (68 g), frozen into cubes or a slush beforehand
• Sodium hydroxide (lye): 1.2 oz (34 g)
• Fragrance oil (optional): up to 0.28 oz (8 g); weigh it, and use no more than this
• Vitamin E oil: 1 teaspoon (5 ml)

Makes about 13 to 14 oz (369 to 397 g) of soap by weight.

How the lye is calculated. The lye is worked out from the oil, using shea butter's saponification value of 0.128 g of sodium hydroxide per gram of butter:

• Shea butter: 283 g × 0.128 = 36.2 g of lye to turn all of the butter into soap
• Total before superfat: 36.2 g
• Superfat: 5%, so 36.2 g × 0.95 = 34.4 g, rounded to 34 g (1.2 oz) of lye
• Milk: twice the lye, 2 × 34 g = 68 g (2.4 oz)

Scent stays within 1 tablespoon (15 ml) per 16 oz (454 g) of oils, which for 10 oz (283 g) of shea butter works out at about 0.28 oz (8 g). These lye and milk amounts are calculated for this exact recipe and weights. Check them in a lye calculator before you make the soap, and always re-run the recipe through one if you change the amount of shea butter or add other oils. See our saponification value chart and soap-making guide for the values behind the calculation.

Directions

About 30 minutes, then 4 to 6 weeks of cure. Freeze the milk the day before.

1. Put on gloves and eye protection before handling lye.
2. Freeze the cow milk into ice cubes or a thick slush beforehand. Cold milk keeps the lye solution cool so the milk does not scorch.
3. Stand the container of frozen milk in a bowl of ice water. Add the sodium hydroxide to the milk a little at a time, stirring until it is fully dissolved. Keep it cold, below about 80°F (27°C): a pale yellow to light tan colour is normal; a dark orange colour or a strong smell means it got too hot.
4. In a separate heat-resistant container, gently melt the shea butter until just liquid, then let it cool to about 95 to 104°F (35 to 40°C).
5. Slowly pour the lye and milk solution into the melted shea butter, stirring continuously.
6. Continue stirring, using a stick blender in short bursts if needed, until the mixture reaches trace: it will thicken and coat the back of a spoon.
7. Add the fragrance oil and vitamin E oil, stirring until evenly combined.
8. Pour the mixture into a soap mould, tap gently to release air bubbles, and cover.
9. Let the soap set in the mould for 24 to 48 hours before unmoulding, then cut into bars and cure in a well-ventilated space for 4 to 6 weeks before use.

Do not use the soap before the cure is complete: it needs this time to harden and mellow.

Troubleshooting

Most milk soap problems come from heat. These are the problems that come up most often with this recipe, with their cause and fix.

Problem	Cause	Fix
The lye and milk solution turns dark orange or brown	The milk sugars scorched because the solution got too hot	Start with fully frozen milk, stand it in ice water and add the lye in small amounts. A scorched solution still makes soap, but expect a darker bar with a stronger smell.
A sharp, ammonia-like smell while mixing	The lye reacting with the milk proteins	This is normal with milk soaps and fades during the cure. Work with good ventilation.
The soap cracks on top or darkens in the centre in the mould	The batter overheated as it set, which milk sugars make more likely	Do not wrap or insulate the mould. Pour at the cooler end of the temperature range and leave it somewhere cool for the first day.
Oily pockets, streaks or a batter that separates	False trace: the shea butter was too cool and began to set before it had mixed with the lye	Keep the melted butter at 95 to 104°F (35 to 40°C) and blend in short bursts until the batter is smooth and evenly thickened.
The bar is too soft to unmould after 48 hours	An all-shea bar with milk starts soft and firms up slowly	Leave it in the mould for another day or two before cutting. The bar hardens steadily through the cure.
A white, powdery film on the top of the bar	Soda ash, which forms where raw soap meets the air	It is harmless and cosmetic. Cover the mould while the soap sets, and trim or plane the surface after unmoulding if you want a clean finish.
The batter thickens suddenly after the fragrance goes in	Some fragrance oils speed up trace	Add fragrance at light trace, stir it in by hand rather than blending, and pour straight away.

Storage and Shelf Life

Cure 4 to 6 weeks, then keep 12 to 18 months. Cure the cut bars for 4 to 6 weeks before use, standing them on their sides with space between them in a cool, dry, airy place away from direct sunlight; do not use the soap before curing is complete. During the cure, water evaporates from the bar and it hardens and becomes milder.

Once fully cured, store bars in a cool, dry place away from direct sunlight; a drawer or shelf with airflow works well. Cured bars typically keep well for 12 to 18 months. Between uses, keep the bar on a well-draining soap dish so it dries out, which makes each bar last longer. Unused shea butter keeps for 2+ years in a closed container away from heat and direct sun.

Scaling and Substitutions

Lye is recalculated for every change. Any change to the oils means working out the lye again, so each version below shows its own calculation.

Half batch

• Shea butter: 5 oz (142 g)
• Lye: 142 g × 0.128 = 18.2 g; × 0.95 = 17.3 g, rounded to 0.6 oz (17 g)
• Cow milk: 1.2 oz (34 g), frozen
• Fragrance oil (optional): up to 0.14 oz (4 g)
• Vitamin E oil: 1/2 teaspoon (2.5 ml)

Makes about 7 oz (198 g) of soap by weight.

Double batch

• Shea butter: 20 oz (566 g)
• Lye: 566 g × 0.128 = 72.4 g; × 0.95 = 68.8 g, rounded to 2.4 oz (69 g)
• Cow milk: 4.9 oz (138 g), frozen
• Fragrance oil (optional): up to 0.56 oz (16 g)
• Vitamin E oil: 2 teaspoons (10 ml)

Makes about 28 oz (794 g) of soap by weight, enough for a full loaf mould. The lye is 69 g rather than exactly double the 34 g in the base recipe because it is calculated from the larger amount of butter, not doubled from a rounded figure.

Swapping the milk

Goat milk, oat milk or canned coconut milk can replace cow milk at the same weight; freeze them the same way. Plain distilled water at the same weight gives a plain shea butter bar rather than a milk soap.

Swapping some of the shea butter

For a harder bar, replace 2 oz of the shea butter with cocoa butter: 8 oz (226 g) shea butter and 2 oz (57 g) cocoa butter. Lye: 226 g × 0.128 = 28.9 g, plus 57 g × 0.137 = 7.8 g, for 36.7 g in total; × 0.95 = 34.9 g, rounded to 1.2 oz (35 g). Milk: 2.5 oz (70 g).

For more lather, replace a quarter of the shea butter with coconut oil, keeping it between 20% and 30% of the oils so the bar does not dry the skin: 7.5 oz (212 g) shea butter and 2.5 oz (71 g) coconut oil. Lye: 212 g × 0.128 = 27.1 g, plus 71 g × 0.183 = 13.0 g, for 40.1 g in total; × 0.95 = 38.1 g, rounded to 1.3 oz (38 g). Milk: 2.7 oz (76 g).

Check every version in a lye calculator before you make it.

Customisation Ideas

Change the look and scent, not the oils. These changes leave the lye calculation as it is:

• Adjust the scent with your favourite skin-safe fragrance or essential oil in place of the fragrance oil listed, keeping the total to 0.28 oz (8 g) or less for this batch.
• Adjust the mould to individual bar moulds instead of a loaf mould for a different shape.
• Add natural colour with a pinch of clay or botanical powder stirred in before pouring.
• Scale up the batch for a full loaf using the double batch above.
• Always recalculate the lye and milk amounts in a lye calculator before changing the shea butter amount or adding other oils.

A free lye calculator such as SoapCalc lets you check any change before you make it.

Essential Oils

Up to 0.28 oz (8 g) in total. Essential oils can replace the fragrance oil in this recipe. Baraka's recommended limit for soap is no more than 1 tablespoon (15 ml) of essential oil in total per 16 oz (454 g) of oils, which for this batch is up to 0.28 oz (8 g), about 160 drops. That is the total for all essential oils together, and it includes any fragrance oil you also use. Weigh essential oils rather than counting drops where you can. Soft, warm scents such as lavender or sweet orange suit the creamy character of a milk bar. The recipe also works unscented.

Application Tips

Use it like any bar soap. Use it 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, and keeping the bar dry between uses gives it the longest life. This recipe makes a smaller batch than a full loaf, so it is a good option for testing a new scent before committing to a larger recipe.

What We Know and How We Know It

The method, temperatures, cure time and troubleshooting on this page come from common practice in the home soap-making community. The lye amounts are calculated from standard published saponification values, as used by common lye calculators. What we say about Baraka's shea butter, where it is made and how long it keeps comes from Baraka's own product documentation and its 2025 Social and Environmental Impact Report. No published research is relied on for the skin feel of milk soap; that comes from the experience of soap makers.

FAQ

How do I make cow milk soap at home?

Make cow milk soap by dissolving lye in frozen cow milk, melting shea butter separately, combining the two and blending to trace. For this recipe that means 1.2 oz (34 g) of lye in 2.4 oz (68 g) of frozen milk, kept below about 80°F (27°C), poured into 10 oz (283 g) of Baraka's shea butter melted and cooled to 95 to 104°F (35 to 40°C). Stir in the fragrance oil and vitamin E at trace, pour into a mould, unmould after 24 to 48 hours, cut into bars and cure for 4 to 6 weeks. Wear gloves and eye protection throughout.

What's a good beginner soap recipe with milk?

This creamy cow milk soap is a good starting point, with a short ingredient list (just shea butter, cow milk, lye and an optional fragrance oil) and a forgiving process. Using a single oil keeps the lye calculation simple, and the small batch keeps the cost of a first attempt low. The two things a beginner needs to get right are weighing the lye and milk precisely and keeping the milk cold so it does not scorch. Baraka's unrefined shea butter makes up the whole of the oil in the bar.

Can I use cow milk in soap instead of water?

Yes. Cow milk is commonly used in place of water in cold-process soap, at the same weight as the water it replaces, adding a rich, creamy character to the finished bar. The difference is heat: milk contains natural sugars that scorch when the lye heats them, so freeze the milk first, stand it in ice water and add the lye slowly. A pale yellow to light tan solution is normal. Goat milk, oat milk and coconut milk can be used the same way, at the same weight.

How long does homemade soap need to cure?

Cold-process soap like this typically needs 4 to 6 weeks to cure fully. Curing lets excess water evaporate and allows the bar to harden and become milder, so do not use it before this time is up. Stand the bars on their sides with space between them in a cool, dry place with good airflow, and turn them now and then so every side dries. A cured bar is firmer and lasts longer in the dish, and this all-shea milk bar keeps for 12 to 18 months once cured.

The Impact of Your Purchase

When you make skincare with Baraka ingredients, you are buying from women's cooperatives that earn fair wages and keep traditional processing methods alive. Baraka's 2025 Social and Environmental Impact Report records income opportunities for more than 3,000 women in northern Ghana, over $100,000 invested in women's enterprise infrastructure, and equipment and fuel recovery that have cut the carbon impact of shea processing by up to 90%. At the Konjeihi Women's Enterprise Centre in Ghana's Upper West Region, Baraka's shea butter is made by hand, and the waste left over from making it is dried into fuel blocks that fire the next batch. Baraka also offsets 100% of the carbon cost of shipping to customers. You get full transparency about what touches your skin and your family's skin, and about where it came from.

Meet Zenabo Imoro, one of the women behind Baraka's shea butter, in this short film: Shea Butter Producer: Zenabo Imoro.

Shop the Baraka Ingredients in This Recipe

Unrefined and handmade at the Konjeihi Women's Enterprise Centre in Ghana, Baraka's shea butter is the ingredient used throughout Baraka's DIY guides and recipes.

Shea Butter | Shop Shea Butter | Unrefined, strained and filtered only, it is the whole oil base of this bar and a versatile base for balms, creams and body butters.

Browse more: Butters · DIY Starter

Try These Next

If you enjoyed this recipe, you might also like:

• Shea Butter and Goats Milk Soap: the same milk-soap technique made with goat milk, for a side-by-side comparison of the two milks.
• Honey and Shea Butter Soap: another sugar-rich addition, so the same keep-it-cool habits you learned here carry straight over.
• Shea Butter and Cocoa Butter Soap: a harder two-butter bar, the natural next step after the cocoa butter swap above.
• Shea Butter and Turmeric Soap: a shea soap coloured with a botanical powder, building on the natural colour idea in Customisation Ideas.
• Shea Butter and Aloe Vera Soap: another way of changing the liquid in a shea soap, this time with aloe vera.
• Shea Butter and Honeycomb Soap: a textured, honey-scented variation for a different indulgent character.
• Shea Butter and Peppermint Oil Soap: a cooling, invigorating variation for a different everyday bar.
• Shea Butter and Eucalyptus Oil Soap: a fresh, herbal variation for a spa-like everyday routine.
• Lavender Shea Butter Soap: a floral variation on the classic four-oil base.
• Coffee and Shea Butter Soap: an energizing, textured soap for a different everyday character.

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 information in this article is for general education. It reflects traditional use, reported experience and, where noted, published research. It has not been evaluated by the U.S. Food and Drug Administration or Health Canada. Baraka products are cosmetics and are not intended to diagnose, treat, cure or prevent any disease or medical condition. Always patch test a new ingredient, keep products away from the eyes and out of reach of children, and speak to a qualified healthcare provider about any skin or health condition. If you add essential oils, use no more than the amount given, and leave them out for young children, during pregnancy and on sensitive skin. Individual results vary.

A note on the traditions in this post: the practices described here come from conversations with, and time spent among, the community members and cooperative partners we work with in West Africa. We share them as anecdotal, first-hand impressions — not as verified fact or expert accounts. These traditions vary from family to family and region to region, so what follows is indicative rather than definitive. We offer it with respect and humility: to share a little of what we've encountered, not to speak for these communities or claim any authority over their traditions.

About the Author

Wayne Dunn is the founder of Baraka Impact and a former Professor of Practice in Sustainability at McGill University. He holds an M.Sc. in Management from Stanford and has spent over 15 years working directly with the Konjeihi Women's Enterprise Centre in Ghana's Upper West Region to source traditionally made shea butter and natural oils. He shares DIY skincare recipes and ingredient guides designed to be made at home with real ingredients — and sourced with full transparency about where they come from.