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Section: Testing > Efficacy
To produce a stable emulsion, an emulsifying agent can be added to the oil and water that will either act as a barrier to alter the droplet coalescence rate, or create an interfacial film that can produce repulsive electrical forces between approaching droplets.
Zeta Potential and Particle Size to Predict Emulsion Stability
Emulsions are popular vehicles in skin care due to their affinity for the skin; however, they are thermodynamically unstable systems. This study investigates zeta potential and particle size distribution as potential screening tools to predict instabilities in emulsion-based cosmetic products, to supplement regular accelerated stability testing.
Nov 19th, 2014
The model accurately predicted skin permeability and the speed of the UHPLC method could classify it as a high-throughput approach.
Test Model Developed to Predict Skin Permeability of Compounds
A test model published in the Journal of Chromatography A uses retention on octadecyl, cholesterol-bonded and immobilized artificial membrane columns to accurately predict the skin permeability of compounds.
Jul 7th, 2022
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