An absorbent core comprising fluff pulp fiber treated with polysiloxane, wherein the absorbent core has a density of about 0.15 g/cm.sup.3 or greater and a Young's modulus of about 75 psi or less. The polysiloxane may comprise an amino-functional moiety, The absorbent core may comprise superabsorbent, and may be employed in a disposable absorbent product.