ArticleInternational journal of cosmetic science2025
Cosmetic emulsions containing innovative complex coacervates: A cross-sectional study.
Article in International journal of cosmetic science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The trial behind it
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Who cites it
2 citing papers in PubMed.
- Development and Functional Characterization of Recombinant Mussel Adhesive Protein for Anti-Oxidative and Anti-Aging Therapeutic Applications.International journal of molecular sciences · 2025Article
- Cosmetic emulsions containing innovative complex coacervates: A cross-sectional study.International journal of cosmetic science · 2025Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
objectiveVitamin E, in the form of α-tocopherol (TOCO), is an essential lipophilic antioxidant widely used in topical formulations. However, incorporating pure TOCO into skincare products poses significant challenges due to its limited solubility and high sensitivity to heat, light and oxidation. The present cross-sectional study aimed to innovate by encapsulating TOCO using non-animal sustainable biopolymers through complex coacervation and to investigate the interaction of these coacervates with cosmetic emulsions, focusing on their impact on the emulsions' physicochemical properties and stability.
methodsTOCO was encapsulated using the complex coacervation technique by combining two biopolymers: fungal chitosan and gum Arabic. The designed microcapsules were incorporated into oil-in-water emulsions containing natural ingredients, and the physicochemical properties as well as the stability of the formulations were evaluated and compared to those of non-encapsulated TOCO emulsions.
resultsInnovative coacervates of the non-animal TOCO complex of 86.8 ± 3.5 μm were developed, achieving a high encapsulation efficiency and loading of 87.0% and 27.2%, respectively. The microcapsules exhibited thermal stability up to a temperature of 220°C and showed improved storage stability of the active ingredient when encapsulated. In particular, 63% of TOCO was retained over 2 months at a temperature of 40°C. Emulsions containing microcapsules showed increased particle size distribution, higher viscosity, and enhanced viscoelastic properties, in accordance with their textural properties. Both emulsions remained stable for a 1-month storage period at a temperature of 40°C, and no noticeable effect of coacervates on the stability of TOCO in the emulsions was observed.
conclusionThis study emphasises the potential of fungal chitosan-gum Arabic coacervates as a sustainable substitute for animal-derived coacervates, demonstrating promising outcomes for the encapsulation of lipophilic actives. When incorporated into cosmetic emulsions, these coacervates enhanced the textural and rheological properties while preserving the TOCO stability over time. These findings suggest that the developed microcapsules offer considerable potential for the development of future skin-care products with enhanced functional properties.
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