Using Titanium Dioxide Pigment in Bar Soap for Whitening
Question
Can Titanium Dioxide Pigment (Make-Up/BB/CC) be used to whiten bar soap? If not, what type of Titanium Dioxide is suitable for whitening bar soap, and how should it be incorporated into the formulation?
Answer
Using Titanium Dioxide in Bar Soap
Yes, Titanium Dioxide can be used in bar soap formulations, primarily to achieve a white and bright appearance.
Regarding Titanium Dioxide 200nm EasyDisperse™, the product description indicates it is treated with Dimethicone/Silica and is designed to disperse easily in silicone or oil. It is specified for use in make-up products only.
For simply whitening bar soap, Titanium Dioxide 250nm Pigment (Non-Treated) is generally recommended. Its description states it acts as a pigment for whitening and can be dispersed in water, which is more suitable for the manufacturing process of bar soap compared to an oil/silicone dispersible type.
As the staff mentioned, if the main goal is just to whiten the soap, the Titanium Dioxide 250nm Pigment (Non-Treated) is sufficient and more cost-effective.
Usage Recommendation:
- For whitening bar soap, Titanium Dioxide 250nm Pigment (Non-Treated) is the more appropriate choice due to its water dispersibility.
- Disperse the powder in a small amount of water or glycerin before adding it to your soap base during the manufacturing process.
- The typical usage rate for Titanium Dioxide as a pigment is 1-25%, but start with a lower percentage and adjust to achieve the desired level of whiteness.
