Music Sorb is literally reconstructed sand (silica) so that it can adsorb and desorb within the correct specific humidity range for wood instruments. Music Sorb is all natural. Other versions of Music Sorb, under a different brand name, have other specific humidity ranges. For example, Art Sorb has an exact humidity range of 70% made for valuable art work such as the Mona Lisa in the Louvre.
If you have any additional questions, please contact us.