This study determined that the optimal formulation for caffeine-based hydrogels involves 0.2% caffeine and 2.3% chitosan, based on gel liberation and stability testing.
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December 2020 in “International Journal of Biological and Chemical Sciences” This study evaluated coconut and palm kernel oils for their potential use in shampoos for black hair, finding they are rich in beneficial fatty acids and could serve as active ingredients due to their physicochemical and rheological properties.
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March 2014 in “Drug Development and Industrial Pharmacy” This study evaluated new aqueous gel formulations of minoxidil without irritants and found that the calcium alginate gel showed the best performance in terms of drug release and skin permeation.
December 2023 in “Biological & pharmaceutical bulletin” This study found that combining lecithin reverse wormlike micelles with isopropyl myristate enhanced the skin permeability of a model hydrophilic drug, facilitated by interactions with sebum in hair follicles.
November 2023 in “Global journal of medical research” This study highlights the importance of understanding the rheological properties of hyaluronic acid fillers, including viscosity, cross-linking, and concentration, to optimize their use in addressing facial aging by maximizing clinical effects.