Retinal Gel Formulation: Texture Issue & Ingredient Compatibility
Question
I have a Retinal gel formulation that turned liquid. I used 0.7% Pro Polymer. I was considering increasing Pro Polymer to 1%.
1. Why did the gel turn liquid with 0.7% Pro Polymer?
2. What percentage of Pro Polymer is needed for a suitable gel consistency in this formula?
3. Can I add Vitamin B3 (Niacinamide) and Vitamin B5 (Panthenol) to this formula?
4. Can this Retinal gel be used with products containing Vitamin C (like C E Ferulic serum)?
Answer
Based on the lab testing results regarding your Retinal gel formula that turned liquid:
The cause of the liquefaction was the insufficient amount of Pro Polymer (0.7%) used in the formula. This specific formula composition requires a higher concentration of Pro Polymer for stability.
The testing showed that using 2.4% Pro Polymer resulted in a suitable gel consistency. Therefore, increasing Pro Polymer to 2.4% is recommended to fix the issue. While increasing to 1% as you initially considered is a step in the right direction, the test indicates that 2.4% is needed for stability in this formula.
Regarding your other questions:
- Adding Vitamin B3 (Niacinamide) and Vitamin B5 (Panthenol) is compatible and can enhance the formula's effectiveness.
- Using this Retinal gel with products containing Vitamin C (like C E Ferulic serum) is possible. However, if you add Vitamin B3 to your Retinal gel formula, it is recommended to apply the Retinal gel and Vitamin C products at different times.
Related Products Mentioned
Pro Polymer™ (Gel Maker)
