Full Stability Study & Instability Troubleshooting Guide (Part 1- Cosmetic Emulsions)

A “step-by-step Guide” with practical tips, and formulation insights drawn from more than 10 years of experience in Cosmetic Industries.

Structured to help you perform full stability study for “emulsion-based formulas”, test & detect signs of instability with troubleshooting guide. Including 10 real case studies for discussions.

O/W Emulsions:

• Factors affecting stability of O/W emulsions.
• Formulation Tips for stable O/W emulsions.
• Key Ingredients of O/W emulsions.

W/O Emulsions:

• Formulation Tips for stable W/O emulsions.
• General Formulation checklist.

Stability Study Protocol:

• Why, when, & how??
• Steps of stability study:

1. Batch production & filling.
2. Zero-time testing.
3. Product Storage.
4. Product Testing (on time intervals).
5. Results & conclusion.
6. Specification limits.

Forms of instability & Troubleshooting Guide:

• Emulsion Separation.
• Viscosity & texture problems:

1. Cream That Turns Watery Over Time (Viscosity loss).
2. Cream That Turns Too Thick Over Time (Viscosity Increase).
3. Cream with grainy or waxy appearance.

 Case Studies (10 real cases with troubleshooting tips).