DIY Dispersible Bath Oil with Polysorbate 80
Plain carrier oil tends to float on bath water. Polysorbate 80 is commonly used to help oil-based ingredients disperse more evenly, making it useful in bath oils and bath bombs. This simple formula contains no added water.
100 g formula
| Ingredient | Percentage | Weight |
|---|---|---|
| Sweet almond or high-oleic sunflower oil | 79% | 79 g |
| Polysorbate 80 | 20% | 20 g |
| Bath-safe fragrance, optional | 1% | 1 g |
Method
- Clean and completely dry the bottle, utensils, and workspace.
- Weigh the carrier oil and Polysorbate 80 into a beaker and stir until uniform.
- Add fragrance only if it is approved for bath use and within the supplier's usage limit.
- Transfer to a bottle with a reducer or pump and label clearly.
- Test a small measured amount in bath water to assess dispersion before regular use.
How to use
Start with approximately one teaspoon in a full bath and adjust cautiously. Mix it into the water before entering.
Slip warning: Even a dispersible bath oil can make the tub and surrounding floor slippery. Enter and exit carefully, supervise children, and clean the tub after use.
Customization ideas
- Use a lightweight, oxidation-stable carrier oil.
- Leave the product unscented for a simpler formula.
- If changing the ratio or adding colorants, retest dispersion and tub staining before use.
Reference
- Example bath-bomb use of Polysorbate 80 to disperse butter and oils: https://tweakandtinker.net/oatmeal-bath-bomb-recipe-with-shea-butter/
This educational formula is for personal DIY use. Confirm ingredient compatibility, fragrance limits, labeling, and local cosmetic regulations before offering a finished product for sale.
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