Release of Propolis Phenolic Acids from Semisolid Formulations and Their Penetration into the Human Skin <i>In Vitro</i>

<table>Release profiles of cumulative amounts of vanillic, caffeic, coumaric, ferulic acids, and vanillin from ointment, w/o cream, and hydrogel.</table>

Evidence-Based Complementary and Alternative Medicine

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Figure 2

Figure 2: Release of Propolis Phenolic Acids from Semisolid Formulations and Their Penetration into the Human Skin <i>In Vitro</i> 

Evidence-Based Complementary and Alternative Medicine

Release of Propolis Phenolic Acids from Semisolid Formulations and Their Penetration into the Human Skin In Vitro

Figure 2