Nanoemulsion: process selection and application in cosmetics--a review.

Area of Science:

• Cosmetic Science
• Materials Science
• Chemical Engineering

Background:

• Growing consumer demand drives sophisticated cosmetic formulations.
• The skin's natural barrier limits active compound penetration, posing formulation challenges.
• Lipid-based nanocarriers, particularly nanoemulsions, offer improved stability, appearance, and delivery properties.

Purpose of the Study:

• To review high-energy and low-energy methods for nanoemulsion preparation in cosmetics.
• To discuss the benefits and drawbacks of different nanoemulsification techniques.
• To guide the selection of appropriate methods for large-scale cosmetic production.

Main Methods:

• Overview of high-energy emulsification techniques.
• Overview of low-energy emulsification techniques.
• Comparative analysis of methods regarding cosmetic and dermatological applications.

Main Results:

• Both high-energy and low-energy methods can produce nanoemulsions with desirable properties.
• Method selection depends on factors like desired droplet size, stability, and scalability.
• Understanding method specificities is crucial for optimizing cosmetic formulation delivery.

Conclusions:

• Nanoemulsions are key for enhancing cosmetic product performance and active delivery.
• A thorough understanding of nanoemulsification methods is vital for formulators.
• Optimization of process selection is critical for successful large-scale nanoemulsion production in cosmetics.