DELIVERY SYSTEMS 99 This opens opportunities for innovative
formats such as transdermal patches, gel-based systems, quasi-drugs, and dermocosmetics, expanding functional applications beyond traditional creams or serums.
Alignment with eco-friendly and clean beauty trends The system avoids PEG, BHT, and BHA, aligning with the growing demand for safer, environmentally friendly formulations. By improving retinol stability without relying on regulated or potentially harmful additives, this technology supports clean beauty positioning while maintaining high performance and consumer trust. Retinol-based products are rapidly gaining
attention in the global cosmetics market, and stabilization technology has become a key differentiator. By combining molecular-level electrostatic
stabilization with a double-shielded structure, this technology ensures both efficacy and stability of retinol, setting a new standard for high-performance, low-irritation, sustained- release formulations. This approach can drive the expansion of premium retinol product lines and lead innovation in the next generation of functional cosmetics.
Future research directions Optimization for final formulations Future studies should refine formulation conditions such as pH, ionic strength, and solvent composition. This ensures the nanocarrier system maintains retinol stability and bioavailability under real-world storage and usage conditions.
Molecular-level chemical stabilization Expanding the principle of inter-molecular electronic interactions to other active ingredients can improve their chemical stability, extend shelf life, and reduce potential skin irritation.
Expanded delivery platforms Exploring patches, gels, and hybrid systems can enable sustained and controlled release, enhance
Encapguard Retinol-ON Temperature Stability
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%
1 2 3 4 5 6 7 (Weeks) Figure 3: Thermal stability evaluation of Encapguard Retinol-ON CCK-8 assay
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Figure 4: Cytotoxicity and irritation test of Encapguard Retinol-ON (CCK-8 assay)
penetration, and broaden the range of product applications for retinol and other actives.
Safety Future research should thoroughly evaluate the long-term safety and stability of the retinol nanocarrier system, ensuring it maintains efficacy while minimizing skin irritation. Developing strategies to continuously reduce irritation and toxicity remains a key focus for future studies. Collectively, these research directions aim
Pro-Collagen-1 ELISA assay
400 350 300 250 200 150 100 50 0
Control UV-B (70mJ/cm2 ) 0.125 0.25
Conventional Retinol Liposome (ng/mL)
Figure 5: Pro-Collagen-1 ELISA assay
www.personalcaremagazine.com 0.125 Encapguard Retinol-ON (ng/mL) 0.25
to further enhance the performance, safety, and versatility of the retinol nanocarrier system. By optimizing formulation conditions, expanding molecular-level stabilization, ensuring long-term safety, and exploring new delivery platforms, the technology can achieve broader applicability across diverse skin care and dermocosmetic products.
These ongoing efforts lay the foundation for
the next generation of high-performance, low- irritation, and sustainable retinol formulations, setting the stage for a comprehensive summary of the system’s transformative potential in the following conclusion.
Conclusion The charge-induced interaction-based retinol stabilization nanocarrier technology represents a next-generation platform that comprehensively addresses the three major challenges in retinol formulation: instability, low absorption, and skin irritation. Unlike conventional approaches such as
simple encapsulation or antioxidant addition, this innovative technology achieves stabilization through molecular-level electrostatic interactions. It fundamentally suppresses the initiation
of oxidation without compromising retinol’s active structure, while the double-shielded nanostructure based on phytosphingosine further enhances ingredient stability. Additionally, the system improves skin
April 2026 PERSONAL CARE MAGAZINE
0.0125 %
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Liposome 48h 8 9 10 11 12
45°C ■ 25°C ■ 5°C ■
Pro-Collagen-1 (ng/mL)
Cell Viability (%)
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