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...g delivery. These advancements are used to enhance the delivery of topical medications to the skin by using chemical and physical agents. For chemical agents, car ...ows the drug molecules to first pass the [[stratum corneum]] barrier via [[hair follicle]]s.<ref name=":3" /> ...

...due to variations in isotope fractionation during planet formation and the loss of hydrogen into space. ...stry]] reactions. This stability, which increases the likelihood of proton loss, is due to the [[Electron donating group|electron donation]] of nearby carb ...