Before and after images of Dr. Hyder, MD at Renaissance MD in Redlands, show remarkable skin improvement just one week after a single XERF Treatment session. Skin tightening has entered a new era. Patients today want visible lifting, firmer skin, and long-term collagen stimulation —without surgery, needles, or downtime. At Renaissance MD Medical Spa in Redlands, CA , we specialize in the most advanced non-surgical skin tightening solutions available, including XERF , one of t