Comparison of Pro Polymer and Ultrez 21 Gelling Agents
Asked by: phiphat.w
On: December 16, 2018
Product Type:
Cosmetics
Question
Could you please explain the differences between Pro Polymer and Ultrez 21, including their tolerance to electrolytes and the pH ranges they work best in? When should I choose one over the other for my gel formulations?
Answer
Based on the information provided, here are the key differences between Ultrez 21 and Pro Polymer, despite having similar INCI names:
- Electrolyte Tolerance: Pro Polymer has better tolerance to electrolytes compared to Ultrez 21.
- pH Range: Pro Polymer works under a wider pH range. Ultrez 21 works best in a narrower pH range, specifically above pH 4.8.
- Usage Recommendation:
- For general gel formulas with a pH above 4.8, Ultrez 21 can be used and is more economical.
- For formulas containing active ingredients that are electrolytes, are difficult to stabilize, or have a low pH, Pro Polymer is the suitable choice.
