Signature Formula - the new flagship formula of Cecilia Rosin which provides a unique bowing sensation when in contact with the string and a clearly defined reaction. Introducing ‘Liquid Form Blending Method’, this is the most significant new development in our rosin formulas for the most demanding musicians. This new process ensures the purity and the preservation of the original chemical properties of the secret rosin formula. The 'Liquid Form Blending Method' is the most significant new development and helps the bow to give rich, full and expressive tones without excessive and greedy bite.