Profile: Absorption Systems, LP (ASLP) focuses on performing assays that can predict the absorption, distribution, metabolism & excretion of small molecules using a variety of in vitro, in situ, and in vivo models. We offer express assays, custom assays, BCS services, transporters, Cellport technologies™, preclinical PK and bioanalytical services. We offer transporters which can have an enormous influence on the pharmacokinetics of drugs that are substrates, either limiting their intestinal absorption, mediating their excretion via bile or urine, or determining how much they get into the brain, cancer cells or placenta.