Use of microfibrillated cellulose and its derivatives to stabilise oil-in-water systems can offer benefits over traditional emulsifiers, as Sappi explains
Across all areas of personal care, consumers are loving ultra-thin textures. In both the US and UK, fluid and serum textures are the top selling face sunscreen format, and in skin care with milky toners having been a key part of 2024 launches, milk textures set to make a comeback in 2025.1,2
Emulsions offer many benefits, including the ability to combine water-soluble and oil-soluble actives into a single system, with improved moisturisation and play time on the skin over water-based systems, as well as significantly improved skin feel and reduced cost compared to anhydrous systems.
Emulsions are versatile and can range from thin fluid lotions to thick rich creams, however, very fluid emulsions are notoriously difficult to stabilise. Reducing emulsifier level can achieve a low viscosity but insufficient emulsifier will ultimately lead to phase separation and poor stability. On the flip side, increasing the emulsifier usage level to obtain stability will often increase viscosity.
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