Design of sustainable lip gloss formulation with biosurfactants and silica particles.

Objective: The main objective of this study was to design a sustainable lip gloss from water-in-oil emulsions by understanding the rheology of combining biosurfactants (rhamnolipids and sophorolipids) with silica particles (Aerosil powders). The different parameters consisted of the silica particle diameter size, the concentration of the particles within the formulation, alongside the different types of biosurfactant and oils used. The experimental results could provide information on the formulation design of cosmetic emulsions such as lip products and foundations.

Designing high-performance colour cosmetics through optimization of powder flow characteristics.

Objective: Explore the impact of powder flow properties such as flow energy and compressibility on the performance characteristics of foundation powders such as cake strength and pay-off.

Methods: FT4 Powder Rheometer from Freeman Technology was utilized to explore various powder compositions. The three major tests performed were flowability test, compressibility test and shear cell test.