At GAIKER, we are experts in evaluating the efficacy of cosmetics using different models that enable us to reproduce fast and reliable predictive systems in the laboratory. Our models range from in-tube enzymatic tests to tests on volunteers, including on 3D models (reconstituted epidermis, corneal, nasal, vaginal epithelium) and ex vivo tests on healthy human skin or on skin that we can induce different pathologies (aged, photo-aged, inflamed, ulcerated, burned, irritated, dermatitis, etc.).