Described is a cosmeceutical formulation for treating damaged skin comprising a first hyaluronic acid having a molecular weight of from about 25 kDa to about 100 kDa, a second hyaluronic acid having a molecular weight of from about 1 kDa to about 20 kDa, and a polyglutamate. The formulation is used in methods of improving skin, including treating or repairing damaged or wrinkled skin.