Creating Oil Products that Turn Milky in Water
คำถาม
How can I formulate oil-based products (like liquid soap/bath milk or skin oil/moisturizer) that turn milky when mixed with water? What specific ingredients and usage percentages are recommended for achieving this effect, particularly for products intended as bath additives or rinse-off cleansers versus leave-on moisturizers?
คำตอบ
Creating Milky Oil Products
To create oil-based products that turn milky upon contact with water, you can use specific emulsifying ingredients mixed with your chosen oils.
1. Liquid Soap / Bath Milk
For a liquid soap or bath milk that turns milky and can also provide foam, you can use Oil Soap ™ or Oil Soap™ WW-CF. These ingredients are designed to create oil-based cleansers that emulsify into a milky texture when mixed with water. They also help provide foaming properties.
Mix either Oil Soap ™ (use at 15-40%) or Oil Soap™ WW-CF (use at 15-70%, recommended 40%) with your desired oils.
2. Skin Oil / Moisturizer that Turns Milky
To create a skin oil that can be used as a regular leave-on moisturizer and also turns milky when it comes into contact with water (like in a bath), you can use Laureth-4 (Oil Milk™).
Mix Laureth-4 (Oil Milk™) with your chosen oils. This blend will function as a normal oil when applied to dry skin. When added to water (e.g., in a bath) or when the skin is rinsed with water, the Laureth-4 (Oil Milk™) will emulsify the oil, causing it to turn into a milky texture.
The usage rate for Laureth-4 (Oil Milk™) is typically 10-40%. A recommended starting point is 10-15% for dry skin or 25-30% for normal to oily skin.
This allows the product to be versatile: used as a nourishing oil on dry skin, and transforming into a milky, easily rinsable texture when water is introduced, suitable for bath soaks or cleansing.
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Oil Soap ™ (High Foaming Oil-Based Liquid Soap)