California-based Allergan, Inc. has had its in-vitro, cell-based assay for testing the stability and potency of Botox and Botox cosmetic, approved by the FDA. Allergan has claimed that the use of the new assay will reduce the use of animal testing by up to an estimated 95 percent, over the course of the next three years, as it hopes to get more regulatory agencies around the world on board to approve this assay.