Citrus Shea Butter Soap

Last updated: October 2026

Citrus soap recipe: a cold-process lemon and shea butter bar

This cold-process citrus soap uses 1 lb (454 g) shea butter, 1 lb (454 g) coconut oil, 8 oz (227 g) olive oil and 8 oz (227 g) castor oil. Baraka's unrefined shea butter, the base of this bar, is made by hand at the Konjeihi Women's Enterprise Centre in Ghana. You add 6.7 oz (191 g) lye, 13.5 oz (382 g) distilled water, 2.1 oz (60 g) lemon juice and 1 tbsp (15 ml) lemon essential oil. It makes about 4 pounds (1,814 g), which cuts into 8–10 bars. The lye and water amounts only suit these exact oils, so re-run a soap calculator if you change any of them. More in Ingredients

Built on shea, scented with real lemon. The bar is built on Baraka's Raw Shea Butter, which is made by hand by women's producer groups at the Konjeihi Women's Enterprise Centre in Wa, Ghana, so a full third of every bar is a conditioning butter rather than a cleansing oil. It follows the fundamentals covered in How to Make Shea Butter Soap, with lemon juice and lemon essential oil folded in for a vibrant, energizing character. For balms, butters and other bars made the same way, the Definitive Guide to DIY with Shea Butter covers the wider range.

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
• How to make citrus shea butter soap
• Directions
• Citrus shea butter soap recipe
• Troubleshooting
• Storage and Shelf Life
• Scaling and Substitutions
• Customisation Ideas
• Essential Oils
• Application Tips
• What We Know and How We Know It
• FAQ
• The Impact of Your Purchase
• Shop the Baraka Ingredients in This Recipe
• Try These Next
• About These Ingredients
• Disclaimer

What This Recipe Is For

An everyday bar with a bright scent. This soap is made for daily washing, with a fresh lemon note and a lather that stays creamy because of the shea butter.

• Everyday cleansing with a rich, gentle lather
• A refreshing, energizing scent to start the day
• Replacing synthetic detergent bars with a traditional, hand-made alternative
• A vibrant, mood-lifting addition to a morning shower routine
• Giving as a hand-made gift once fully cured

Why Make This Yourself

Real lemon, and your own oils. Making this bar yourself means you choose every oil and the scent comes from real lemon rather than a fragrance blend. There's something satisfying about watching a liquid oil-and-lye mixture transform into a bright, citrus-scented bar over the course of a few weeks. It rewards a little patience: the batter comes together quickly, but the real transformation happens during the weeks of cure that follow.

Compared to store-bought citrus soaps, which often rely on synthetic fragrance oils, this one uses real lemon juice and essential oil, and keeps its natural glycerin content intact. 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 scent strength and mould choice, but precision matters for the lye and water measurements. This project suits anyone who has made cold-process soap at least once before.
• Yield: approximately 4 pounds (1,814 g) of soap, which typically cuts into 8–10 bars.
• Prep and make time: about 45 minutes of hands-on work, then 24–48 hours in the mould and 4–6 weeks of cure.

Why These Ingredients Work Together

Two conditioners, two lather-makers. This bar balances conditioning oils with cleansing and lathering ones, finished with a bright citrus character. Shea Butter contributes deep conditioning and a smooth, creamy bar texture. 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. Lemon Juice and Lemon Essential Oil finish the bar with a fresh, energizing scent.

By weight, shea butter and coconut oil are each a third of the oils, and olive and castor oil are each a sixth. That balance is what the recipe depends on.

More coconut oil gives more bubbles but a harsher, more drying bar; above about 35% of the oils, coconut oil makes a drying bar. More castor oil makes the bar softer and slower to firm up, and more olive oil makes it milder but slower to harden in the mould. Any change to the oils changes the lye, so it always means a new lye calculation.

Ingredient by Ingredient

What each ingredient does here. Each oil has a job in the bar, and the two lemon ingredients carry the scent.

• Shea Butter: Deeply conditioning, it helps keep the finished bar from feeling drying even with cleansing oils in the mix. Shea butter is a third of the oils here, so its quality shows in the bar. Baraka's shea butter is unrefined, strained and filtered only, which is why it keeps its natural colour, anywhere from ivory to pale yellow, and a mild nutty smell.
• Traditional Coconut Oil: Drives the rich, bubbly lather this soap is known for. Baraka's virgin coconut oil is pressed from fresh coconut kernel in Ghana's coastal coconut belt.
• 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.
• Lemon Juice: Traditionally valued for giving skin a fresh, invigorated look after use.
• Lemon Essential Oil: Adds a bright, energizing scent, valued for its refreshing character.
• Sodium hydroxide (lye) and distilled water: The lye turns the oils into soap, and the distilled water dissolves it. Distilled water is used because it carries no minerals into the batter.

Before You Begin: Soap-Making Safety

Gloves, goggles and a clear room. Lye burns skin and eyes, so the safety rules come before anything else.

• 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, never water to 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

Makes about 4 lb (1,814 g), 8–10 bars. Weigh everything on a digital scale; the butters and oils are given by weight.

• Shea Butter — 1 lb (454 g)
• Traditional Coconut Oil — 1 lb (454 g)
• Olive oil — 8 oz (227 g)
• Castor oil — 8 oz (227 g)
• Sodium hydroxide (lye) — 6.7 oz (191 g)
• Distilled water — 13.5 oz (382 g)
• Lemon juice — 2.1 oz (60 g), about 1/4 cup (60 ml)
• Lemon essential oil — 1 tbsp (15 ml)

Note: these lye and water 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.

How the lye is worked out

The lye is calculated from each oil's weight and its saponification value, the amount of sodium hydroxide needed to turn one gram of that oil into soap. The values are the standard published figures used by common lye calculators such as SoapCalc.

• Shea butter: 1 lb (454 g) × 0.128 = 2.05 oz (58.1 g)
• Coconut oil: 1 lb (454 g) × 0.183 = 2.93 oz (83.1 g)
• Olive oil: 8 oz (227 g) × 0.135 = 1.08 oz (30.6 g)
• Castor oil: 8 oz (227 g) × 0.128 = 1.03 oz (29.1 g)
• Total before superfat: 7.09 oz (200.9 g)
• Superfat of 5%: 7.09 oz (200.9 g) × 0.95 = 6.7 oz (191 g) of lye
• Water at twice the lye weight: 13.5 oz (382 g)

Check the recipe in a lye calculator before you make it. See our saponification value chart and soap-making guide for the values behind these figures.

How to make citrus shea butter soap

Dissolve the lye in the distilled water (always lye into water) and melt the shea butter, coconut oil, olive oil and castor oil. When both are around 100–120°F (38–49°C), pour the lye solution into the oils and blend to trace. Stir in the lemon juice and lemon essential oil, pour into a mould, and leave for 24–48 hours. Then cut the soap and cure the bars for 4–6 weeks before use. Wear gloves and eye protection whenever you handle lye. More in Directions

Directions

Nine steps, then a long cure. Have the mould lined and every ingredient weighed before you start, because the batter can thicken quickly once the lemon goes in.

1. Put on gloves and eye protection before handling lye.
2. In a heat-resistant container, slowly add the sodium hydroxide to the distilled water (never the reverse), stirring until fully dissolved. The mixture will heat up — 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 solution and the oils are both around 100–120°F (38–49°C), slowly pour the lye 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. Add the lemon juice and lemon essential oil, stirring until evenly distributed.
7. Pour the mixture into a soap mould, tap gently to release air bubbles, and cover.
8. Let the soap set in the mould for 24–48 hours before unmoulding.
9. 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.

Citrus shea butter soap recipe: the whole formula in one paragraph

Combine 1 lb (454 g) shea butter, 1 lb (454 g) coconut oil, 8 oz (227 g) olive oil and 8 oz (227 g) castor oil with a solution of 6.7 oz (191 g) lye in 13.5 oz (382 g) distilled water. The shea butter is Baraka's unrefined shea butter, made by hand by women's producer groups at the Konjeihi Women's Enterprise Centre in Wa, Ghana. Once the mixture reaches trace, stir in 2.1 oz (60 g) lemon juice and 1 tbsp (15 ml) lemon essential oil. Pour it into a mould and cure the cut bars for 4–6 weeks. Cured bars typically keep 12–18 months. More in Ingredients

Troubleshooting

Six things that can go wrong. Most problems with this bar are about timing, temperature or storage, and most have an easy fix.

Problem	Likely cause	Fix
The batter thickens fast after the lemon goes in	Citrus juice and citrus essential oils can speed up trace.	Add both at light trace and stir them in by hand, not with the stick blender. Have the mould ready before they go in.
A white, powdery film on top of the bars	Soda ash, which forms where fresh soap meets the air while it sets. It is cosmetic only.	Cover the mould while the soap sets. On finished bars, trim the film off or rinse it away after the cure.
Too soft to unmould after 48 hours	Olive and castor oil are a third of the oils, so the bar firms slowly, especially in a cool room.	Leave it in the mould another day or two in a warmer spot. Next time, cover the mould with a towel to keep the warmth in.
The lemon scent has faded after the cure	Citrus essential oils fade faster than most scents in cold-process soap.	Use more lemon essential oil next time, staying within the limit in Essential Oils: up to 3 tbsp (45 ml) for this batch.
Orange spots appear after some months	The liquid oils have started to go rancid, usually from heat, damp or light.	Store bars cool, dry and out of the sun with air around them, and use them within the shelf life.
A cured bar stings or feels harsh	The lye or the oils were probably mis-weighed.	Do not use the bar. Check your scale and the lye calculation before the next batch.

Storage and Shelf Life

Cure for 4–6 weeks, then keep them dry. Store 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.

The reason is the liquid oils: olive and castor oil make up a third of this bar, and warmth, damp and light slowly turn them rancid. Air around the bars keeps them dry, and darkness and cool keep them fresh for longer. Between uses, store on a well-draining soap dish to extend the life of each bar.

Scaling and Substitutions

Halve it, double it, or swap the coconut. Every amount scales together, and the lye is recalculated from the oils each time rather than simply divided.

Half batch, about 2 lb (907 g), 4–5 bars

• Shea butter — 8 oz (227 g)
• Coconut oil — 8 oz (227 g)
• Olive oil — 4 oz (113 g)
• Castor oil — 4 oz (113 g)
• Lye — 3.4 oz (95 g)
• Distilled water — 6.7 oz (190 g)
• Lemon juice — 1.1 oz (30 g)
• Lemon essential oil — 1 1/2 tsp (7.5 ml)

Double batch, about 8 lb (3,629 g), 16–20 bars

• Shea butter — 2 lb (907 g)
• Coconut oil — 2 lb (907 g)
• Olive oil — 1 lb (454 g)
• Castor oil — 1 lb (454 g)
• Lye — 13.4 oz (381 g)
• Distilled water — 26.9 oz (762 g)
• Lemon juice — 4.2 oz (120 g)
• Lemon essential oil — 2 tbsp (30 ml)

Swapping coconut oil for palm kernel oil

If you have no coconut oil, Baraka's palm kernel oil can take its place at the same weight, 1 lb (454 g). Palm kernel oil is pressed from the kernel inside the stone of the palm fruit; it is not red palm oil, which comes from the orange flesh around the stone and would tint the bar. In soapmaking it gives a hard bar with quick lather. It needs less lye than coconut oil, so the figures change:

• Palm kernel oil: 1 lb (454 g) × 0.156 = 2.50 oz (70.8 g)
• With the shea, olive and castor figures above, total before superfat: 6.65 oz (188.6 g)
• At 5% superfat: 6.3 oz (179 g) of lye, with 12.6 oz (358 g) distilled water

For any other oil, run the new combination through a lye calculator before you make it.

Customisation Ideas

Change the look, keep the oils. These ideas change the scent, colour or shape without touching the oil weights.

• Swap the citrus for orange or grapefruit essential oil instead of lemon for a different scent profile.
• Add texture with 1 tbsp (15 ml) of ground poppy seeds or citrus zest stirred in at trace.
• Adjust the mould to individual bar moulds instead of a loaf mould for a different shape.
• Always recalculate lye and water amounts with a soap calculator (see links below) before changing any oil or its weight.
• Add natural colour with a pinch of turmeric for a warm, sunny tone.

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

Essential Oils

Up to 3 tbsp (45 ml) for this batch. Baraka's recommended limit for soap is no more than 1 tbsp of essential oil in total per 16 oz (454 g) of oils. This recipe has 48 oz (1,362 g) of oils, so the 1 tbsp (15 ml) of lemon essential oil sits well inside it.

Sweet orange or grapefruit essential oil can replace lemon at the same amount. If you blend several essential oils, the limit covers all of them together. Lemon essential oil suits soap because soap is rinsed off; keep lemon and bergamot essential oils out of leave-on recipes such as body butters and balms.

Application Tips

Lather lightly and rinse well. 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, a light lather goes a long way; no need to scrub aggressively. Store the bar dry between uses for the longest life.

What We Know and How We Know It

The method, temperatures, cure time, troubleshooting and storage advice here come from established home soap-making practice. The lye and water figures are calculated from the standard published saponification values used by common lye calculators such as SoapCalc, at a 5% superfat. What we say about Baraka's shea butter, coconut oil and palm kernel oil comes from Baraka's own product documentation and specifications. The fresh, invigorated look attributed to lemon juice is traditional use, not a tested result.

FAQ

How do I make citrus and shea butter soap at home?
Melt shea butter, coconut oil, olive oil, and castor oil, combine with a dissolved lye-water solution, blend to trace, stir in lemon juice and lemon essential oil, pour into a mould, and cure for 4–6 weeks. You need a digital scale, a stick blender, a heat-resistant jug for the lye solution, a mould, gloves and eye protection, and every oil, the lye and the water are weighed exactly as listed because the lye is calculated for those weights. Baraka's unrefined shea butter makes up a third of the oils, which is what gives this bar its creamy, conditioning feel.

What's a good DIY soap recipe with citrus?
A shea butter-based cold-process soap with lemon juice and lemon essential oil works well, adding a bright, energizing scent to a traditional soap base. This recipe balances Baraka's conditioning shea butter and olive oil against cleansing coconut oil, with castor oil to hold the lather. If lemon is not your scent, sweet orange or grapefruit essential oil can replace it at the same amount, and other scented bars on the same shea base are listed in Try These Next.

Can I use lemon juice in soap?
Yes — lemon juice is commonly used in cold-process soap for its natural scent and fresh character, though it should always be measured carefully within a tested recipe. In this recipe it goes in at trace and is stirred in by hand, and because citrus juice can make the batter thicken faster, the mould should be ready before it goes in. Strain out any pulp and seeds first, and weigh it rather than guessing.

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. Stand the cut bars on their sides with space between them in a cool, airy room out of direct sun, turning them now and then so every face dries evenly, and give a bar that is still soft or tacky at four weeks the full six.

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.

To see how Baraka's shea butter is made, from cracking and roasting the nuts to boiling and filtering the fat, read How is Handcrafted Shea Butter Made? You can also meet Zenabo Imoro, one of the shea butter producers Baraka works with, in the short film Shea Butter Producer: Zenabo Imoro.

Shop the Baraka Ingredients in This Recipe

These are the Baraka ingredients used throughout Baraka's DIY guides and recipes.

Shea Butter | Shop Shea Butter | Baraka's unrefined shea butter gives this bar its creamy, conditioning feel. Rich and deeply moisturising. Traditionally used on dry skin, lips, hands, feet and hair. A versatile base for balms, creams, and body butters.

Traditional Coconut Oil | Shop Traditional Coconut Oil | Lightweight and versatile, softens skin and supports gentle cleansing. Adds slip and glide to balms, soaps, and body products. Absorbs quickly rather than sitting on the skin, and in soapmaking contributes hardness and abundant lather.

Browse more: Butters · Oils · Recipe Kits

Try These Next

More shea butter soaps. Each of these is a cold-process bar on a shea butter base, so the skills you used here carry straight over.

• Shea Butter and Turmeric Soap — a natural next step if you liked adding a pinch of turmeric for colour here.
• Shea Butter and Goats Milk Soap — a milk bar on the same shea base, for when you want to try soaping with milk.
• Honey and Shea Butter Soap — adds honey to a shea butter bar, a different natural addition from lemon.
• Creamy Cow Milk and Shea Butter Soap — a cow's milk version, if you want a creamier-feeling bar after this bright one.
• Shea Butter and Aloe Vera Soap — pairs shea butter with aloe vera for another everyday bar.

If you enjoyed this recipe, you might also like:

• Charcoal and Shea Butter Soap — a deeper-toned soap with a different kind of clarifying character.
• Rose and Shea Butter Soap — a softer, floral alternative if citrus isn't your preferred scent direction.
• Peppermint and Shea Butter Soap — another invigorating, energizing scent, this one cooling rather than bright.
• Vanilla and Shea Butter Soap — a warm, sweet-scented option for a comforting everyday bar.
• Chocolate and Shea Butter Soap — a rich, indulgent variation with a naturally cocoa-scented 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.

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.