Compatibility of Titanium Dioxide Liquid with Electrolytes in Sunscreen Lotion
Question
When formulating a sunscreen lotion containing chemical UV filters, Titanium Dioxide 15nm Liquid, and electrolytes like Magnesium Sulfate, is the Titanium Dioxide dispersion compatible with the electrolytes, and what potential stability issues might arise?
Answer
Compatibility of Titanium Dioxide 15nm Liquid with Electrolytes
Regarding your question about using Titanium Dioxide 15nm Liquid with ingredients containing electrolytes, specifically Magnesium Sulfate, in your sunscreen lotion formula:
Based on the product information for Titanium Dioxide 15nm Liquid (Gloss), this specific product is not compatible with formulations containing electrolytes. The description states that it cannot be used in formulas containing electrolytes because the emulsifier or dispersant used in this product is sensitive to them.
Since your formula includes Magnesium Sulfate, which is an electrolyte, using Titanium Dioxide 15nm Liquid (Gloss) in this formula is not recommended as it could lead to instability issues such as aggregation of the Titanium Dioxide particles, affecting the product's efficacy and stability.
To make your formula stable, you would need to either:
- Remove the Magnesium Sulfate from your formula.
- Source a different type of Titanium Dioxide dispersion that is specifically formulated to be compatible with electrolytes.
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