about this item:

This weightless liquid reconstructor for fine, damaged hair rebuilds and improves the structure of hair. Contains Quadramine Complex, an exclusive blend of low molecular weight and size proteins (MWS 150-2500). This balance of 19 essential amino acids (the building blocks of hair) adheres quickly and effectively to ensure maximum protection and reconstruction from the cuticle to the cortex. pH 4.5 - 5.5. Made in USA.