Sugar scrub cubes are one of the easiest ways to create a mess-free exfoliating product that cleanses, smooths, and moisturizes your skin in a single step.
Unlike traditional body scrubs, these solid cubes are:
- Pre-portioned
- Easy to use in the shower
- Less messy
- Ideal for gifting or selling
If you’re new to making scrubs, start with a softer formula like a whipped version in how to make whipped sugar scrub to better understand texture and oil balance before moving into solid cubes.
If you’ve ever made sugar scrub cubes that turned out too soft, crumbly, or overly oily, this guide will help you correct those issues and get consistent results.
Who Are Sugar Scrub Cubes Best For?
These are especially well-suited for:
- Beginners learning DIY skincare
- Anyone looking for a cleaner, less messy exfoliation option
- Sensitive skin types (gentler than salt scrubs)
- Small batch makers and gift set creators
What Are Sugar Scrub Cubes?
Sugar scrub cubes are solid exfoliating bars made from a combination of soap base, sugar, and lightweight oils.
They function as a multi-purpose product:
- Cleanse like soap
- Exfoliate like a scrub
- Moisturize like a body treatment
If you’ve made whipped scrubs before, this is a more structured and less messy alternative.
This structure comes from the balance of solid and liquid ingredients, similar to how emulsified products are formulated. To better understand this, read emulsifiers in skincare: what they are and how they work.
Solid Sugar Scrub Formula (Percentages + 300g Batch)
| Ingredient | Percentage | Weight (300g Batch) |
|---|---|---|
| Melt & Pour Soap | 50% | 150 g |
| Sugar | 44% | 132 g |
| Fragrance Oil | 2% | 6 g |
| Polysorbate 80 | 2% | 6 g |
| Apricot Kernel Oil | 2% | 6 g |
| Total | 100% | 300 g |
Watch Before You Start (Important)
If you’ve struggled with oily or unbalanced scrubs, it often comes down to incorrect formulation. Learn how to properly scale and balance recipes in percentages vs grams in skincare: how to formulate correctly.
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Why Each Ingredient Is Used
Melt & Pour Soap
This is your structural base. It:
- Holds the cubes together
- Creates lather
- Prevents crumbling
If you’re new to working with soap bases, see a beginner-friendly project in how to make melt and pour soap cupcakes.
Sugar
This is your exfoliant. It:
- Removes dead skin cells
- Adds texture
- Provides a gentler alternative to salt
Fragrance Oil
I am using Para Violet Fragrance Oil.
Enhances scent and overall user experience.
Essential oils can also be used if preferred.
Polysorbate 80
A key ingredient for performance. It:
- Helps oils rinse clean
- Reduces greasy residue
- Prevents buildup in the shower
Polysorbate 80 works similarly to surfactants by helping oil and water mix during use. To understand this better, read surfactants in skincare: what they do and how they work.
Apricot Kernel Oil
A lightweight carrier oil that:
- Improves glide
- Adds moisture
- Prevents dryness without softening the cubes too much
How to Make Sugar Scrub Cubes
Step 1: Melt Soap Base
Melt gently and avoid overheating. I like to melt in 5-10 second intervals. You want to mix well in between each interval.
Step 2: Add Oils and Fragrance
Add:
- Apricot kernel oil
- Fragrance oil
- Polysorbate 80
And mix until it is fully incorporated.
Step 3: Add Mica Powder
Add mica powder and mix well. Pro tip – if your mica powder does not want to mix in, you can always spray with rubbing alcohol to break the surface tension.
Step 4: Add Sugar
Mix until the texture becomes thick and scoopable.
Step 5: Mold
Press the mixture firmly into silicone molds.
Step 6: Let Set
Allow the cubes to set before unmolding.
Troubleshooting
Too Soft
- Excess oil
- Too much sugar
- Overheated soap base
Crumbly
- Not enough soap base
- Mixture not pressed firmly enough
Sweating
This is common with melt and pour soap due to glycerin attracting moisture.
This issue is known as glycerin dew. Learn how to prevent it in <a href=”https://summerrain.website/soap-sweating-glycerin-dew/”>soap sweating (glycerin dew): causes and fixes</a>.
Cost to Make
Estimated cost:
- Soap base: $3–5
- Sugar: under $1
- Oils and additives: $2–3
Total: approximately $6–9
Cost per cube: roughly $0.50–0.75
Packaging
- You will want to make sure that you package these in a sealed container. I use plastic wrap but you could use a jar with a lid. We want to do this to prevent water being attracted to them.
FAQ
Why are my sugar scrub cubes soft?
This is usually caused by too much oil or not enough soap base.
Can I use salt instead of sugar?
Yes, but it will create a firmer and more abrasive cube.
Do I need polysorbate 80?
No, but it significantly improves rinse-off and reduces greasiness.
Sugar Scrub Cubes Recipes
Ingredients
- 150 g Melt & Pour Soap
- 132 g Sugar
- 6 g Fragrance Oil
- 6 g Polysorbate 80
- 6 g Apricot Kernel Oil
Instructions
Melt Soap Base
Melt gently and avoid overheating. I like to melt in 5-10 second intervals. You want to mix well in between each interval.Add Oils and Fragrance
Add:Apricot kernel oilFragrance oilPolysorbate 80And mix until it is fully incorporated.Add Mica Powder
Add mica powder and mix well. Pro tip – if your mica powder does not want to mix in, you can always spray with rubbing alcohol to break the surface tension.Add Sugar
Mix until the texture becomes thick and scoopable.Mold
Press the mixture firmly into silicone molds.Let Set
Allow the cubes to set for 24 hours before unmolding.
Video
Related DIY Skincare Guides
If you want to improve your formulations and expand your product line, these are the next posts to read:
- Learn texture and oil balance in how to make whipped sugar scrub
- Understand formulation structure in emulsifiers in skincare
- Improve rinse-off and performance in surfactants in skincare
- Master formulation basics in percentages vs grams in skincare
