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Type: Article
Section: Cosmetic Ingredients
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Preservative Predicaments in Facial Skin Care
Preserving skin care products has become challenging because of attacks by special interest groups, which often lead to negative consumer perceptions. As these assaults on preservatives—some scientifically sound, some not—continue, the industry must look for new preservation methods to gain acceptance.
Feb 4th, 2016
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
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