Abstract: This invention relates to an activated charcoal patch, which can be applied on a user's skin. The activated charcoal patch includes a hydrogel with activated charcoal particles dispersed therein. Upon applying the activated charcoal patch, the activated charcoal particles in the hydrogel absorb or extract the pathogens, toxic chemicals, inflammatory mediators and other undesired radicals from the skin. Also included within the scope of the invention are bioactive agents, such as insect repellants, sun screens, cosmetic agents, etc.