Learn how to make a homemade shampoo bar. Shampoo bars are gentle on your hair, eco friendly, and easy to make with this kit from Simply Earth.
DIY Shampoo Bar Recipe
Switching to a DIY shampoo bar is one of the easiest ways to reduce plastic waste while giving your hair a healthier, more natural clean.
Unlike bottled shampoos filled with harsh detergents, a homemade shampoo bar recipe lets you control every ingredient.
The challenge? Most natural shampoo bar recipes call for specialty powders and clays that are hard to track down.
That’s why I recommend the Simply Earth Shampoo Bar Kit—it comes with everything you need to make 4 bars so you can skip ingredient hunting and get straight to making.
Why Use a Shampoo Bar?
More people are making the switch to eco friendly shampoo bars, and here’s why:
- Plastic Free Hair Care: One bar replaces 2–3 bottles of shampoo, cutting down on plastic waste.
- Travel Friendly: TSA loves them—no spills, no liquids, just a solid shampoo bar.
- Sulfate Free & Gentle: Ingredients like SCI powder and SLSA powder create a rich lather without the harshness of traditional sulfates.
- Hair Benefits: Rose clay gently cleanses, while argan oil and hydrolyzed rice protein strengthen and soften hair.
With the Simply Earth kit, you can even customize your bar with different essential oils for hair care—peppermint for a refreshing tingle, rosemary for scalp health, or lavender for soothing fragrance.
I recommend buying the kit and making a shampoo bar from scratch, but you can also make this easy melt and pour shampoo bar. I also have an easy conditioner bar without BTMS.
Rose Clay Shampoo Bar Recipe (Simply Earth Kit)
Ingredients
- 30 drops Rosemary Essential Oil
- 20 drops Peppermint Essential Oil
- ¾ cup + 1 ½ tablespoon SCI Powder (Sodium Cocoyl Isethionate)
- ¼ cup + 2 tablespoons SLSA Powder (Sodium Lauryl Sulfoacetate)
- 1 ½ tablespoon Foam Boost (Cocomidopropyl Betaine)
- 2 tablespoons Rose Kaolin Clay
- 2 teaspoons Hydrolyzed Rice Protein
- 2 teaspoons Argan Oil
- 29 drops Geogard ECT Preservative
- 2 tablespoons Cornstarch
Instructions
Step #1
In a bowl, combine SCI Powder, SLSA Powder, rose clay, and cornstarch. Stir well.
Step #2
In a separate container, mix Foam Boost, Rice Protein, Argan Oil, Preservative, and Essential Oils.
Step #3
Add the wet mix to the dry mix. Stir, then knead until moldable.
Step #4
Press into silicone molds and refrigerate for 2 hours.
Step #5
Remove and let air dry for 2–3 days before using.
How to Use: Wet your hair, rub the bar between your hands, and work the lather into your scalp. Rinse thoroughly and store the bar on a soap dish that drains well.
How to Customize Your DIY Shampoo Bars
One of the best parts about making your own homemade shampoo bars is the ability to customize them for your unique hair needs. While the Simply Earth Shampoo Bar Kit gives you a tried-and-true recipe, you can easily swap in different essential oils, carrier oils, or natural additives to make each bar your own.
Essential Oils
Essential oils don’t just add fragrance—they can target specific scalp and hair concerns. Try these variations:
- Lavender Essential Oil – calming, great for soothing sensitive scalps
- Tea Tree Essential Oil – clarifying, helps reduce buildup and flakiness
- Lemongrass Essential Oil – refreshing, adds shine and strengthens strands
- Ylang Ylang Essential Oil – nourishing, promotes softness and reduces frizz
Carrier Oils
Carrier oils add moisture and nutrients that keep your hair healthy and strong. You can swap or combine these in place of argan oil:
- Coconut Oil – deeply moisturizing, great for dry or curly hair
- Jojoba Oil – lightweight, balances scalp oils and adds shine
- Sweet Almond Oil – rich in vitamins, softens and smooths hair
- Grapeseed Oil – fast-absorbing, ideal for fine or oily hair
Why Choose the Simply Earth Shampoo Bar Kit?
Buying shampoo bar ingredients separately can get pricey—and confusing. SCI powder, SLSA powder, and natural preservatives aren’t easy to find at your local store.
What's included:
- Rosemary Essential Oil
- Peppermint Essential Oil
- SCI Powder [Sodium Cocoyl Isethionate]
- SLSA Powder [Sodium Lauryl Sulfoacetate]
- Foam Boost [Cocomidopropyl Betaine]
- Rose Kaolin Clay
- Hydrolyzed Rice Protein
- Argan Oil
- Geogard ECT Preservative
- Soap Mold
- Soap Wax Paper
- Recipe Labels
If you’ve ever wanted to learn how to make shampoo bars at home without being overwhelmed, this kit is the best place to start.
Get your Simply Earth Shampoo Bar Kit here and start making your own plastic free shampoo bars today.
For more DIY hair care recipes, try these posts:
- Yogurt Hair Mask
- 6 Easy Hair Masks for Dry or Damaged Hair
- How to Make Herbal Apple Cider Vinegar Rinse
- DIY Curl Cream
- Detangler Spray With Marshmallow Root
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DIY Shampoo Bar Recipe
materials:
- 30 drops Rosemary Essential Oil
- 20 drops Peppermint Essential Oil
- ¾ cup + 1 ½ tablespoon SCI Powder (Sodium Cocoyl Isethionate)
- ¼ cup + 2 tablespoons SLSA Powder (Sodium Lauryl Sulfoacetate)
- 1 ½ tablespoon Foam Boost (Cocomidopropyl Betaine)
- 2 tablespoons Rose Kaolin Clay
- 2 teaspoons Hydrolyzed Rice Protein
- 2 teaspoons Argan Oil
- 29 drops Geogard ECT Preservative
- 2 tablespoons Cornstarch
tools:
- Bowls
- Molds
- Measuring Cups
steps:
- In a bowl, combine SCI Powder, SLSA Powder, rose clay, and cornstarch. Stir well.
- In a separate container, mix Foam Boost, Rice Protein, Argan Oil, Preservative, and Essential Oils.
- Add the wet mix to the dry mix. Stir, then knead until moldable
- Press into silicone molds and refrigerate for 2 hours.
- Remove and let air dry for 2–3 days before using.
- How to Use: Wet your hair, rub the bar between your hands, and work the lather into your scalp. Rinse thoroughly and store the bar on a soap dish that drains well.
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