SYNCHRO SKIN GLOW luminizing fluid foundation R4 SYNCHRO SKIN GLOW luminizing fluid foundation #R4 is a medium coverage foundation that is formulated to provide a natural, luminous finish. The lightweight formula is enriched with Hyaluronic Acid and Super Hyaluronic Acid to hydrate and plump the skin, while an Illuminating Complex evens out skin tone and adds a subtle glow. The foundation also contains Uji Tea Extract, a powerful antioxidant that helps to protect the skin from environmental stressors. The non-comedogenic formula is ideal for all skin types, including sensitive skin, and is free of synthetic fragrances and dyes.