SkinMedica is a professional skincare brand, sold through skin clinics and authorized retailers rather than the drugstore aisle. Its signature is TNS, a growth-factor blend built on the brand's own research. The range runs across serums, the HA5 hydrator, sunscreens, a retinol line, and pigment care like Even & Correct. Most people find SkinMedica through one product, then stay for the routine.