Institut Esthederm Cellulaire Fundamental Serum is a universal concentrated serum formulated with Esthederm Cellular Water to hydrate, soothe, and rebalance the skin. This 30ml serum addresses various skin concerns, including dryness, dehydration, tightness, and redness, by restoring equilibrium to the skin's flora. Its lightweight texture ensures quick absorption, leaving the skin feeling comfortable and refreshed. Regular use can lead to a more balanced complexion and improved skin resilience.