Silicone ionic gels for skin‐compatible cosmetic formulations: A surfactant‐free approach to hydrophilic additive integration

Objective To develop and evaluate a novel silicone ionic gel (SIG) for personal care applications, designed to deliver enhanced texture, hydration, and compatibility with a wide range of cosmetic ingredients. Methods SIG was synthesized by swelling a fatty acid modified silicone elastomer in 68 wt% plant‐derived solvent. The gel's architecture was engineered to form flexible, water‐accessible channels. Performance was assessed through various complementary techniques including rheological testing, formulation studies, and skin hydration testing. Results SIG exhibited solid‐like rheology, shear recovery, and surfactant‐free incorporation of water and polyols. SIG‐based formulations improved skin hydration by ~10% over PEG‐based silicone gels. Demonstrated broad compatibility with hydrophilic and hydrophobic ingredients. Showed superior pigment dispersion without surface treatment, confirmed via optical microscopy. Conclusions SIG is a multifunctional gel platform offering unique texture, long‐lasting sensory effects, enhanced moisturization, and formulation flexibility. Its compatibility with diverse cosmetic ingredients and ability to host structured water make it a promising candidate for next‐generation skincare and cosmetic products.