CECILIA rosin is the new name for ANDREA rosin starting in 2020. CECILIA rosin introduces a brand new ‘Liquid Form Blending Method’ with a new CECILIA ‘Signature Formula’ rosin. Each individual rosin ingredient is melted slowly until it becomes liquid. It is then dispensed through a special filtering screen and the ingredients are blended together. “Signature Formula" is a new flagship formula of CECILIA Rosin by Cremona in America which provides a unique bowing sensation when in contact with the string and a clearly defined reaction.