You don’t need a long ingredient list or a chemistry set to make a simple homemade bubble bath. This basic version uses water, shredded castille soap, glycerin, and a few drops of essential oil to create a gently scented bath blend you can pour straight into the tub.
If you like making your own bath basics, this one fits right in with Basic Bubble Bath, Liquid Castile Soap, and 100% Natural Bubble Bath. Because this recipe contains water and a handmade soap base, keep it in a clean bottle, store it in a cool, dry place, and watch for changes in smell, color, or texture. The FDA notes that cosmetic products can go bad if they’re stored too warm or too moist, which matters here more than people like to admit.
Ingredients
Basic Bubble Bath
- 1 quart water
- 1 bar castille soap, shredded
- 2 oz. Glycerin
- 3 drops essential oil, your choice
Instructions
- Shred the bar of castille soap.
- Blend the shredded castille soap and water until liquid.
- Add the glycerin and essential oil of your choice.
- Pour into a clean bottle or jar for storage.
Tips
Use a clean container and utensils from the start so you don’t shorten the life of the finished bubble bath before it ever reaches the tub.
Shredding the soap finely helps it dissolve more smoothly. Big chunks eventually get there, but they take their sweet time.
If you want a lighter scent, start with the 3 drops listed and leave it there. Essential oils can be strong in a warm bath, even when the bottle insists otherwise.
How to Use It
Pour a small amount under warm running bath water to help create bubbles. Agitating the water as the tub fills will usually give you better foam than adding it to still water at the end.
Storage
Store the finished bubble bath in a tightly sealed bottle or jar in a cool, dry place away from direct light and steam. Because this is a water-based homemade bath product without a verified preservative system, a conservative storage estimate is up to 1 week at room temperature or up to 2 weeks in the refrigerator. Discard it sooner if it smells off, separates oddly, changes color, or develops any visible cloudiness beyond normal soap settling.
If you make a larger batch, divide it into smaller clean containers so you only open one at a time. That won’t turn it into a commercial shelf-stable product, but it does help limit repeated contamination from wet hands and bathroom humidity.
💸 Budget101® Price Breakdown: Basic Bubble Bath
Ingredient |
Walmart Item |
Pkg Price |
Amount Used |
Cost Used |
|---|---|---|---|---|
Water |
– |
1 quart |
$0.01 |
|
Bar castille soap |
$5.48 |
1 |
$5.48 |
|
Glycerin |
$4.48 |
2 oz. |
$1.13 |
|
Essential oil |
$4.98 |
3 drops |
$0.05 |
💸 |
Cost |
|---|---|
🧾 Total Batch Cost |
$6.67 |
👨👩👧👦 Cost Per Serving |
$0.42 |
📅 Walmart prices last verified August 26, 2026. Prices may vary by location and are subject to change. Learn how to calculate the cost of a recipe on your own!
🛒 Walmart Grocery List
Not sure exactly what this batch costs you per serving? Here’s how to break down the real cost of any recipe so you know before you shop.
Frequently Asked Questions about Basic Bubble Bath
You can, but the texture and strength will change a bit. A liquid castile soap is already diluted, so if you swap it in you’ll usually need less added water to keep the finished bubble bath from turning too thin.
The short answer is soap-based bubble baths usually make softer, looser bubbles than commercial products. Add it under warm running water and let the stream agitate the tub as it fills, because pouring it into still water at the end won’t do much besides disappoint you.
Glycerin helps add slip and moisture so the bath feels less harsh on skin. It also slightly thickens the mixture, which makes the finished bubble bath feel a little less like soapy water in a bottle.
Absolutely. The recipe will still work without it, and that’s often the better choice if you’re making it for someone sensitive to fragrance or if you simply want a plain bath blend.
Stick with skin-safe options you already know you tolerate well, such as lavender or chamomile-style blends made for external use. Keep the amount low, because warm bath water amplifies fragrance fast and more is not automatically better.
Yes, just double each ingredient in the same proportion. If you do, it’s smart to split the batch between two smaller bottles so you open less product at one time and reduce the chance of spoilage.
Use a very clean bottle or jar with a tight-fitting lid. A squeeze bottle makes it easier to portion into the tub without dripping the whole bathroom counter, which is never as charming as it sounds.
Start with 2 to 4 tablespoons under running water, then adjust from there. Smaller tubs need less, and using a heavy pour won’t always create more bubbles if your water is softening the soap too quickly.
You can, but keep the storage window in mind because this is a homemade water-based bath product. If you’re gifting it, make small batches, bottle them in clean containers, and include a simple note to use promptly and keep it cool.
A little settling can happen with soap-based mixtures, especially if the soap wasn’t fully blended smooth. Give it a gentle shake before each use, but toss it if separation comes with an off smell, color change, or anything that looks suspicious.
📌 Love this Basic Bubble Bath? Pin it!
Did you make this recipe? Tell me how it turned out for you and whether you kept it simple or added your favorite scent. Your comment helps other readers know what worked in a real bathroom, not just on paper.
🖨️ Print-Friendly Basic Bubble Bath
Basic Bubble Bath
Equipment
Materials
- 1 quart water
- 1 bar castille soap shredded
- 2 oz. glycerin
- 3 drops essential oil your choice
Instructions
- Shred the bar of castille soap.
- Blend the shredded castille soap and water until liquid.
- Add the glycerin and essential oil of your choice.
- Pour into a clean bottle or jar for storage.
Notes
Estimated cost is based on a 5 oz castile soap bar at $5.48, 2 oz from an 8 oz glycerin bottle priced at $23.44, and 3 drops from a 1 fl oz essential oil bottle priced at $7.99. Prices vary by store and date.
Prep time is an estimate and includes shredding, blending, and bottling.
Storage estimate: up to 1 week at room temperature or up to 2 weeks refrigerated in a tightly sealed clean container. Discard sooner if odor, texture, or color changes.
