Download our brochure: https://bit.ly/4dzryoA In vitro models mimicking different biological barriers can be adopted to perform absorption studies and evaluate efficacy of products, ingredients or new formulations before to proceed with the next step evaluation (e.g. clinical trial). In vitro methods are less expensive, faster, and offer better controls of experimental variables than human or animal studies, so they can be easily exploited as screening, ranking, or categorizing tool.