Cloudiness and Sediment in Liquid Formulation
Question
I mixed Polyglyceryl-4 Caprate (3%), Dipropylene glycol (12%), Preserve-Free PHL (0.9%), and water by shaking, but the mixture became cloudy and developed white sediment. Which ingredient is causing this issue?
Answer
Formulation Issue Analysis
Based on your formulation and the problem described (cloudiness and white sediment), the ingredient most likely causing the issue is Preserve-Free PHL.
The product description for Preserve-Free PHL indicates that it requires thorough blending in water for approximately 5 minutes to dissolve completely and become clear. Simple shaking may not be sufficient to fully incorporate this ingredient, leading to undissolved particles appearing as sediment and causing the mixture to be cloudy.
- Polyglyceryl-4 Caprate and Dipropylene glycol are both readily soluble or miscible in water and are less likely to cause this type of precipitation.
Recommendation:
Ensure that the Preserve-Free PHL is fully dissolved in the water phase by blending thoroughly for several minutes before proceeding with the rest of the formulation steps. This should help achieve a clear solution without sediment.
