Dr. Glassman's work led to his discovery of SBD-4, a patented root extract at the center of SkinClinical's powerful formulation. SBD-4 is proven scientific technology which works to stimulate the skin's natural cell regenerative process, improve skin's hydration, microcirculation and oxygenation, and increase the skin's elasticity, thickness, texture, tone as well as natural collagen production. SkinClinical's extreme healing formulas are the only products that contain patented SBD-4 and the most effective, concentrated ingredients from both science and nature to deliver visible results outside of the doctor's office, without a prescription. All of SkinClincal's healing products undergo rigorous third-party clinical trials with the National Institute of Health to ensure the most effective results.