zoya-formulates-6a5545f32b33e

Scientific diagram on white background showing ethanol-water co-solvent system: a polarity spectrum bar from water (high polarity) to ethanol (lower polarity), with solubility windows for hydrophilic actives, amphiphilic actives, and lipophilic actives labeled. Second small diagram showing ethanol disrupting intercellular lipids in stratum corneum cross-section. Clean minimal chemistry style.

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