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A chronic skin disorder called atopic dermatitis (AD) is brought on by the deterioration of the skin’s barrier function marked by inflammation, dryness, and bacterial infection along with immunological changes.  Althaea officinalis  (AO), known for its anti-inflammatory and immunomodulatory properties, has been explored as a potential treatment for AD. This study aimed to develop and evaluate a novel transliposomes (TL) formulation containing AO for AD treatment. Using rotary evaporation, AO-TL formulations were created and optimized employing Box Behnken Design. The optimized AO-TL formulation showed consistent characteristics: vesicle size of 145.8 nm, polydispersity index of 0.201, zeta potential of −28.22 mV, and entrapment efficiency of 86.21%. TEM imaging shows the spherical shapes of the vesicle. These findings demonstrate the formulation’s stability and ability to encapsulate AO effectively.  In vitro  drug release studies revealed that the AO-TL formulation released 81.28% of the drug, outperforming conventional AO dispersion (56.80%). Additionally, when applied to rat skin, the TL gel demonstrated deeper penetration (30 μm) in comparison to the standard solution (5.0 μm) based on confocal laser scanning microscopy (CLSM).  Ex vivo  and dermatokinetics studies showed improved penetration of drug-loaded transliposomes gel in rat skin than the conventional AO gel. Overall, the optimized AO-TL formulation offers promising characteristics and performance for the topical treatment of AD. Its drug release, antioxidant activity, and deeper penetration suggest enhanced therapeutic effects. Further research and clinical trials are needed to validate its efficacy and safety in AD patients.

journal of biomaterials science, polymer edition

Design, optimization, and characterization of  Althaea officinalis -loaded transliposomes for the treatment of atopic dermatitis: a Box Behnken Design,  in vitro , and  ex vivo s tudy